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A S H L A N D NORTH BASS I. MIDDLE BASS I. SOUTH BASS I. KELLEYS I. M U S K I N G U M W I L L I A M S F U L T O N D E F I A N C E H E N R Y P A U L D I N G P U T N A M V A N W E R T A L L E N M E R C E R A U G L A I Z E D A R K E S H E L B Y M I A M I P R E B L E B U T L E R W A R R E N H A M I L T O N C L E R M O N T B R O W N A D A M S P I K E H I G H L A N D C L I N T O N R O S S G R E E N E F A Y E T T E C L A R K M A D I S O N C H A M P A I G N L O G A N U N I O N H A R D I N M A R I O N H A N C O C K W Y A N D O T W O O D S A N D U S K Y L U C A S O T T A W A E R I E H U R O N S E N E C A C R A W F O R D R I C H L A N D M O R R O W K N O X D E L A W A R E P I C K A W A Y S C I O T O L A W R E N C E J A C K S O N G A L L I A V I N T O N M E I G S P E R R Y H O C K I N G F A I R F I E L D L I C K I N G H O L M E S C O S H O C T O N L O R A I N M E D I N A C U Y A H O G A G E A U G A S U M M I T P O R T A G E W A Y N E S T A R K T U S C A R A W A S C A R R O L L G U E R N S E Y H A R R I S O N B E L M O N T M O N R O E M O R G A N A T H E N S N O B L E W A S H I N G T O N J E F F E R S O N C O L U M B I A N A M A H O N I N G T R U M B U L L A S H T A B U L A L A K E M O N T G O M E R Y F R A N K L I N W. SISTER I. INDIANA KEN TU CKY WES T V I R GI N IA MICHIGAN P E NN S Y L V A NI A ONTARIO 475 77 471 71 80 470 71 675 280 75 680 270 74 480 670 71 277 80 70 490 75 275 70 271 80 70 76 90 275 75 75 75 71 80 80 90 77 77 70 62 6 35 22 68 127 52 52 52 250 33 30 250 35 6 62 20 62 30 20 127 36 22 50 50 127 20 24 50 36 250 250 33 62 40 224 422 6 23 62 50 6 36 36 23 23 40 40 22 42 42 40 68 27 50 42 20 23 22 23 42 23 224 322 127 127 68 35 30 33 33 20 224 30 6 224 224 24 68 62 35 33 42 VAN WERT MAUMEE OREGON SYLVANIA TOLEDO FREMONT FOSTORIA TIFFIN BOWLING GREEN PERRYSBURG ASHLAND BUCYRUS GALION SANDUSKY NORWALK AMHERST AVON AVON LAKE ELYRIA LORAIN NORTH RIDGEVILLE VERMILION BRUNSWICK MEDINA WADSWORTH MANSFIELD WOOSTER CONNEAUT STRUTHERS YOUNGSTOWN AURORA KENT RAVENNA STREETSBORO ALLIANCE CANTON MASSILLON NORTH CANTON AKRON BARBERTON CUYAHOGA FALLS GREEN HUDSON NORTON STOW TALLMADGE TWINSBURG GIRARD NILES WARREN COSHOCTON LANCASTER CAMBRIDGE MOUNT VERNON NEWARK PATASKALA ZANESVILLE DELAWARE WASHINGTON COURT HOUSE BEXLEY COLUMBUS DUBLIN GAHANNA GROVE CITY HILLIARD REYNOLDSBURG UPPER ARLINGTON WESTERVILLE WHITEHALL WORTHINGTON MARION CIRCLEVILLE MARYSVILLE URBANA SPRINGFIELD GREENVILLE BELLEFONTAINE CELINA PIQUA TROY CENTERVILLE CLAYTON DAYTON ENGLEWOOD HUBER HEIGHTS KETTERING MIAMISBURG RIVERSIDE TROTWOOD VANDALIA WEST CARROLLTON SIDNEY FAIRFIELD HAMILTON MIDDLETOWN OXFORD WILMINGTON BEAVERCREEK FAIRBORN XENIA BLUE ASH FOREST PARK LOVELAND MONTGOMERY NORTH COLLEGE HILL NORWOOD READING SHARONVILLE FRANKLIN LEBANON MASON SPRINGBORO IRONTON CHILLICOTHE PORTSMOUTH ATHENS MARIETTA EAST LIVERPOOL SALEM STEUBENVILLE DOVER NEW PHILADELPHIA BAY VILLAGE BEDFORD BRECKSVILLE BROADVIEW HEIGHTS BROOKLYN CLEVELAND EAST CLEVELAND EUCLID GARFIELD HEIGHTS MAYFIELD HEIGHTS MIDDLEBURG HEIGHTS NORTH OLMSTED PARMA PARMA HEIGHTS RICHMOND HEIGHTS ROCKY RIVER SEVEN HILLS SHAKER HEIGHTS SOLON STRONGSVILLE UNIVERSITY HEIGHTS WARRENSVILLE HEIGHTS WESTLAKE EASTLAKE MENTOR PAINESVILLE WICKLIFFE WILLOUGHBY CINCINNATI LIMA DEFIANCE FINDLAY ASHTABULA ACEO ACSO BCSO BGSU BHSO BTCO CLEO COWO CSCO ECCO GPDO KSTO KSUO LCCO LECO MACO MOSO MUCO OGSO OSLO OSMO OSUO OUAO SSUO UOCO WSCO WSDO YSUO BGFO 28 44 45 1 25 42 15 52 12 22 40 21 31 17 25 26 34 7 41 14 9 18 25 20 25 36 23 4 29 27 16 43 10 19 13 32 11 38 30 5 37 39 24 8 8 6 3 33 33 46 46 46 D U 25 53 25 2 35 2 2 2 2 U U U U U D D U D 25 13 U U U U U U U U U U U U U U U U U U U U U U U U U U U 25 U D U D D U D U U U U U U U U U U U U U U D D D D U D D D D D D D D D D D D D D D 14 14 25 25 25 41 D D D D D D D D D D D D 41 41 25 D D D D D D D D D D D D D D U 1968 1974 1975 1977 1980 1983 1983 1984 1986 1986 1986 1987 1987 (4) 1987 2013 2013 2013 2013 2013 2013 2013 2012 1987 (3) 1987 (2) 1988 1988 1988 1989 1989 1990 1990 1991 1991 1991 1992 1992 1992 1992 1992 1992 2014 2014 1993 1993 1994 1994 1995 1995 1995 1998 1999 2000 2000 2000 2001 2001 (6) 2014 (5) 2014 2006 1988 2001 2001 2002 2002 2002 2003 2003 2003 2003 2003 1804 1834 1836 1843 1848 1850 1854 1858 1859 1864 1868 1870 1873 1873 1875 1876 1877 1881 1882 1883 1884 1885 1886 1886 1888 1888 1889 1892 1896 1898 1899 1899 1901 1906 1925 1925 1925 1926 1926 1926 1927 1927 1928 1929 1929 1930 1930 1930 1930 1930 1931 1931 1931 1931 1933 1936 1936 1936 1936 1936 1937 1937 1937 1937 1937 1937 1937 1937 1939 1939 1939 1939 1940 (4) 1943 1944 1948 1950 1951 1952 1953 1953 1955 1956 1956 1957 1961 1967 1975 1992 2004 1987 1987 1989 1990 1990 1990 1992 1992 1993 1995 1995 1998 1998 1998 2000 1884 1955 2004 2004 2005 2005 2005 2005 2005 2005 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006 2007 2007 2007 2007 2007 2007 2007 2007 2007 2008 2008 2008 2010 2010 2010 2010 2010 2011 2011 2008 2008 2009 2009 2009 2009 2010 2010 2014 1987 1988 2013 2011 2011 2011 2011 2011 2011 (3) 2011 2011 (3) 2011 2011 (2) 2011 2012 2010 2012 2012 2012 2012 1817 1824 1839 1857 1869 1876 1877 1883 1890 1894 1895 1897 1902 1909 1933 1936 1947 1970 1974 1974 1976 1979 1980 1980 1980 1980 1980 1983 1985 1985 1988 1989 1990 1990 1991 1998 1998 1998 1999 1999 1999 1999 1999 2001 2004 2005 2014 2013 2013 2013 2013 2012 2010 2005 1985 1998 1998 2004 2005 2005 2005 2005 2005 2006 2006 2007 2008 2009 2009 2009 2010 2010 2011 2011 2013 2014 2010 2013 2014 Lake Erie -81° W -81° W -82° W -82° W -83° W -83° W -84° W -84° W -85° W 42° N 42° N 41° N 41° N 40° N 40° N 39° N 39° N Map EG-2 VERSION 2.0 Revised 6/2014 EARTHQUAKE EPICENTERS IN OHIO AND ADJACENT AREAS GIS Cartography by Donovan M. Powers and Dean R. Martin Database Administator: Joseph G. Wells STATE OF OHIO DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGICAL SURVEY Thomas J. Serenko, Chief by Michael C. Hansen This map depicts the approximate locations of earthquakes that were felt in Ohio or near the state border that had instrumental magnitudes of 2.0 or greater. For purposes of graphic display, some events are not plotted precisely at their listed coordinates (see catalog at right), especially in areas of multiple events. Noninstrumental earthquake locations and magnitudes have been calculated from historical accounts, including newspaper articles, scientific publications, published and unpublished government reports and records, and a variety of other sources. Because of the paucity of original reports for some earthquakes, these locations and magnitudes may be very imprecise; for some early events, locational errors may be tens of kilometers. Two eighteenth-century events, in 1776 and 1779, are not plotted on the map because they are known only from single felt reports recorded by Moravian missionaries in Coshocton County; these earthquakes may have had epicenters beyond Ohio borders. This map includes most of the small-to-moderate (2.0 magnitude or greater) earthquakes that were beyond the state border but were, or may have been, felt in Ohio. Instrumental recording of earthquakes in Ohio began about 1900 at St. Ignatius College (now John Carroll University) in Cleveland. In 1927, Xavier University in Cincinnati established a seismic station that operated until the late 1960s. Bowling Green State University operated a seismic station during the 1970s through the mid-1980s. The University of Toledo established a seismic station in the early 1980s. Despite this long history of instrumental recording in Ohio, there were never sufficient numbers of stations to precisely locate small earthquakes occurring within the state. Therefore, instrumental locations of small earthquakes in Ohio during this period probably have no greater precision than events located on the basis of felt reports. From 1977 to 1992, the University of Michigan operated a nine-station seismic network in the Anna area of western Ohio and precisely located a number of events in this region. In 1986, John Carroll University established a multistation seismic network in northeastern Ohio and located a number of small earthquakes in this area; this network ceased operation in 1992. From 1992 until establishment of the Ohio Seismic Network in 1999, Ohio lacked in-state capability to locate earthquakes. During this period, some small events were detected and instrumentally located by out-of-state networks, including the University of Kentucky and the Geological Survey of Canada. However, some instrumental locations are imprecise because of seismic-station distance and distribution that preclude optimal triangulation. Seismologists express this epicentral uncertainty by calculating the error ellipse for an event. Some poorly recorded events may have error ellipses with axes of tens of kilometers (km), whereas precisely located events may have error ellipses of less than one km. The uncertainties of locations of instrumental and noninstrumental earthquakes is well known to seismologists, geologists, and others who work with earthquake data; however, such information is noted in this report so that individuals and organizations are aware that the placement on a map of a symbol depicting an earthquake location is a graphic representation of an approximate epicenter based upon available data. Therefore, site-specific decisions should be based on the quality of the original data for a specific earthquake. The complete database of Ohio and border-region earthquakes is available online at https://geosurvey.ohiodnr.gov/earthquakes-ohioseis/ohioseis-home. The database includes a listing of some larger earthquakes that were felt or caused damage in Ohio but are beyond the border region as well as a list of doubtful or uncertain events that were reported as earthquakes but were probably of nonseismic origin. Although derived from previous compilations by academic researchers and governmental institutions, the database has depended heavily on the report and catalog by Seeber and Armbruster (1991), with additions by John G. Armbruster. Many older events are poorly known and require additional research of newspaper accounts for complete documentation. Historical research occasionally reveals earthquakes that have not been noted on previous lists. The ODNR Division of Geological Survey welcomes such new information. OHIO EARTHQUAKE CATALOG KEY TO CATALOG HEADINGS MAPPING CONVENTIONS FAULTS & STRUCTURAL FEATURES I thank John G. Armbruster of Lamont-Doherty Earth Observatory for his interest in historic earthquakes in Ohio and adjacent areas and for generously sharing these data with me through the years. Research on historical earthquakes in northeastern Ohio by Weston Geophysical Corporation (1979), compiled as part of the impact statement on the Perry Nuclear Power Plant, was of considerable help in compilation of the Ohio catalog. ACKNOWLEDGMENTS REFERENCES & DATA SOURCES OHIO SEISMIC NETWORK STATIONS CATALOG OF BORDER REGION EARTHQUAKES Map No. Structural Feature 1 unnamed fault (Lake Co.) 2 Rome Trough Fault System 3 Cambridge Cross-Strike Structural Discontinuity 4 unnamed fault (Belmont Co.) 5 W. Hickman Creek-Bryan Station Fault 6 Burning Springs Fault System 7 Ohio River Fault 8 Bowling Green Fault System 9 unnamed faults (Delaware Co.) 10 Middleburg Fault 11 Pittsburgh-Washington Cross-Strike Structural Discontinuity 12 unnamed fault (Sandusky Co.) 13 unnamed faults (Washington Co.) 14 unnamed faults (Madison Co.) 15 unnamed fault (Scioto Co.) 16 Serpent Mound Impact Structure 17 unnamed fault (Montgomery, Warren Cos.) 18 unnamed fault (Hancock Co.) 19 Tiffin Fault 20 unnamed faults (Fayette, Pickaway, Ross Cos.) 21 Harlem Fault 22 unnamed faults (Fayette Co.) 23 unnamed fault (Seneca Co.) 24 Starr Fault System 25 unnamed faults along COCORP seismic lines 26 unnamed fault (Highland Co.) 27 Akron Fault 28 Suffield Fault System 29 Smith Township Fault 30 Highlandtown Fault 31 Anna-Champaign Fault 32 Logan Fault 33 Auglaize Fault 34 Crawford Faults 35 Kentucky River Fault System 36 Killbuck Dome 37 Marion Fault 38 Maumee Fault 39 Outlet Fault 40 Plum Run Quarry Fault 41 Bellefontaine Outlier Faults 42 unnamed faults (Adams Co.) 43 unnamed fault (Wyandot Co.) 44 unnamed fault (Ashtabula Co.) 45 unnamed fault (Ashtabula Co.) 46 Akron Magnetic Boundary 47 Seneca Anomaly 48 Coshocton Zone 49 Fort Wayne Rift 50 Southwestern Ohio Anomaly 51 Grenville Front Tectonic Zone 52 Utica Mountain Fault 53 Utica Mountain Structure Map showing major Precambrian structural features defined by geopotential and seismic reflection data. Modified from Baranoski (2013). ? ? 48 49 46 51 50 47 0 25 50 miles 0 50 kilometers SCALE 1:500,000 Projection is Ohio state plane coordinate system, south zone North American Datum 1983 Base map derived from Ohio Department of Transportation and Ohio Environmental Protection Agency datasets 10 0 10 20 30 Miles 10 0 10 20 30 Kilometers MODIFIED MERCALLI INTENSITY SCALE 1 Recommended bibliographic citation: Hansen, M.C., 2014, Earthquake epicenters in Ohio and adjacent areas (ver. 2.0): Columbus, Ohio Department of Natural Resources, Division of Geological Survey Map EG-2, scale 1:500,000. This product of the Ohio Department of Natural Resources (ODNR), Division of Geological Survey is intended to provide general information only and should not be used for any other purpose. It is not intended for resale or to replace site- specific investigations. These data were complied by the ODNR Division of Geological Survey, which reserves the publication rights to this material. If these data are used in the compilation of other data sets or maps for distribution or publication, this source must be referenced. A page-size (8-1/2" x 11") version of this product may be downloaded for free online at: http://geosurvey.ohiodnr.gov/portals/geosurvey/PDFs/OhioSeis/epicentr.pdf The information contained herein may be updated or edited in the future. Future releases of this material, if altered, will display a revision date. Users should check to ensure they have the latest version and reference the appropriate revision date if it is being used in other works. Neither the Ohio Department of Natural Resources, nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, expressed or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of this product. Any use thereof for a purpose other than that for which said information or product was intended shall be solely at the risk of the user. www.OhioGeology.com YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FA COUNTY SOURCE 1804 5 5 0 0 0.00 39.100 -84.200 - 2.9 2 III - CLER OSN 1834 11 20 18 30 0.00 39.600 -84.300 - 3.5 2 IV - MONT OSN 1836 7 9 2 15 0.00 41.500 -81.700 - 3.1 3 IV - CUYA NCE 1843 6 19 23 0 0.00 40.100 -83.800 - 3.5 3 IV 1.1 CHAM OSN 1848 4 6 0 0 0.00 39.650 -82.530 - 3.7 2 IV 24.3 FAIR NCE 1850 10 1 10 25 0.00 41.420 -81.550 - 3.2 3 IV - CUYA NCE 1854 1 11 1 0 0.00 39.400 -83.700 - 3.5 3 IV - CLIN CERI 1858 4 10 11 30 0.00 41.700 -81.300 - 3.3 3 IV - LAKE NCE 1859 9 0 0 0 0.00 39.100 -84.200 - 2.5 2 F - CLER OSN 1864 0 0 0 0 0.00 39.100 -84.200 - 2.5 2 F - CLER OSN 1868 2 7 1 0 0.00 41.500 -81.600 - 3.0 2 F - CUYA OSN 1870 1 16 16 15 0.00 39.710 -82.600 - 2.9 3 II - FAIR NCE 1873 1 4 23 40 0.00 40.200 -83.000 - 3.8 3 IV - DELA NCE 1873 4 23 4 14 0.00 39.700 -84.200 - 3.0 3 IV - MONT NCE 1875 6 18 13 43 0.00 40.200 -84.000 - 4.7 2 VII 120.6 SHEL NCE 1876 6 0 0 0 0.00 40.400 -84.200 - 3.4 3 V - SHEL NCE 1877 1 23 21 0 0.00 38.800 -83.500 - 3.4 2 III 2.4 ADAM NCE 1881 8 30 5 0 0.00 39.200 -83.700 - 2.9 3 III - HIGH NCE 1882 2 9 20 0 0.00 40.400 -84.200 - 3.1 2 V 0.25 SHEL NCE 1883 1 5 10 30 0.00 41.350 -82.100 - 3.0 2 F - LORA OSN 1884 9 19 19 14 0.00 40.700 -84.100 - 4.8 2 VI 373 ALLE USGS 1884 12 23 23 0 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE 1885 1 18 10 30 0.00 41.150 -81.550 - 3.8 2 IV 10.9 SUMM NCE 1886 5 3 21 30 0.00 39.360 -82.240 - 3.8 2 V 24.3 ATHE NCE/OSN 1886 9 11 9 0 0.00 40.970 -81.700 - 3.1 2 IV - WAYN NCE 1888 2 9 20 0 0.00 41.490 -81.690 - 3.3 3 III - CUYA NCE 1888 2 11 2 0 0.00 41.000 -81.500 - 3.4 2 V - SUMM NCE/OSN 1889 9 0 0 0 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE 1892 4 15 5 25 0.00 40.550 -84.570 - 3.8 3 IV - MERC NCE 1896 3 15 7 0 0.00 40.300 -84.200 - 3.1 3 IV - SHEL NCE 1898 10 29 6 0 0.00 41.490 -81.690 - 2.9 3 II - CUYA NCE 1899 9 14 3 0 0.00 41.170 -82.120 - 3.3 3 III - LORA NCE 1899 11 12 14 0 0.00 39.300 -83.000 - 3.1 3 IV - ROSS NCE 1901 5 17 7 0 0.00 38.730 -82.990 - 4.3 2 VI 66.2 SCIO NCE 1906 4 20 17 30 0.00 41.500 -81.700 - 2.9 3 III - CUYA NCE 1925 3 27 4 6 0.00 39.800 -83.900 - 3.4 3 V - GREE NCE 1925 4 4 0 0 0.00 39.100 -84.500 - 2.5 3 II - HAMI NCE 1925 10 0 0 0 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE 1926 10 28 8 42 0.00 41.700 -83.600 - 3.4 3 III - LUCA NCE 1926 10 28 11 0 0.00 41.700 -83.600 - 3.1 3 IV - LUCA NCE 1926 11 5 14 53 0.00 39.100 -82.100 - 3.6 2 VII 0.9 MEIG NCE 1927 2 17 5 30 0.00 40.700 -82.500 - 3.1 3 IV - RICH NCE 1927 2 17 6 0 0.00 40.700 -82.500 - 2.5 3 II - RICH NCE 1928 10 27 0 0 0.00 40.400 -84.100 - 3.0 2 III 0.25 SHEL NCE 1929 3 8 9 6 0.00 40.400 -84.200 - 3.7 2 V 13.4 SHEL NCE 1929 6 10 0 0 0.00 41.500 -81.700 - 2.9 3 III - CUYA NCE 1930 6 26 21 45 0.00 40.500 -84.000 - 3.2 2 IV 2 AUGL NCE 1930 6 27 7 23 0.00 40.500 -84.000 - 3.1 3 IV - AUGL NCE 1930 7 11 0 15 0.00 40.600 -83.200 - 3.1 3 IV - MARI NCE 1930 9 29 21 15 0.00 40.300 -84.200 - 2.9 3 III - SHEL NCE 1930 9 30 20 40 0.00 40.300 -84.300 - 4.2 2 VII 0.1 SHEL NCE 1931 3 21 15 48 0.00 40.400 -84.200 - 3.0 2 III 0.3 SHEL NCE 1931 4 1 0 15 0.00 40.400 -84.000 - 2.9 3 III - SHEL NCE 1931 9 20 23 4 54.00 40.430 -84.270 - 4.7 2 VII 120.6 SHEL NCE 1931 10 9 14 30 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE 1933 2 23 3 20 0.00 40.400 -84.200 - 3.3 2 IV 4.9 SHEL NCE 1936 1 31 19 30 0.00 41.200 -83.200 - 3.1 3 IV - SENE NCE 1936 1 31 20 0 0.00 41.200 -83.200 - 2.5 3 II - SENE NCE 1936 10 8 16 30 0.00 39.300 -84.400 - 3.3 2 III 1.8 HAMI NCE 1936 12 26 1 15 0.00 39.100 -84.500 - 2.9 3 III - HAMI NCE 1936 12 26 2 5 0.00 39.100 -84.500 - 2.9 3 III - HAMI NCE 1937 3 2 14 47 33.30 40.490 -84.270 - 4.9 2 VII 268.3 SHEL NCE 1937 3 3 9 50 0.00 40.700 -84.000 - 3.2 2 V 0.5 ALLE NCE 1937 3 3 9 55 0.00 40.700 -84.000 - 2.9 3 III - ALLE NCE 1937 3 9 5 44 35.50 40.470 -84.280 - 5.4 2 VIII 489 SHEL NCE/USGS 1937 4 23 17 15 0.00 40.700 -84.000 - 3.1 2 III 0.7 ALLE NCE 1937 4 27 17 0 0.00 40.700 -84.000 - 3.1 2 III 0.7 ALLE NCE 1937 5 2 17 5 0.00 40.700 -84.000 - 3.1 3 IV - ALLE NCE 1937 10 17 4 25 0.00 39.100 -84.500 - 2.9 2 III 0.15 HAMI NCE 1939 3 18 6 0 0.00 40.400 -84.000 - 2.5 3 II - SHEL NCE 1939 3 18 14 3 0.00 40.400 -84.000 - 3.3 2 IV 1.3 SHEL NCE 1939 6 18 3 20 0.00 40.300 -84.000 - 3.1 2 IV 1 SHEL NCE 1939 7 9 12 50 0.00 40.300 -84.000 - 2.5 3 II - SHEL NCE 1940 6 16 4 30 0.00 40.900 -82.300 - 3.1 3 IV - ASHL NCE 1940 7 28 9 30 0.00 40.900 -82.300 - 2.9 3 III - ASHL NCE 1940 8 15 10 35 0.00 40.900 -82.300 - 2.9 3 III - ASHL NCE 1940 8 20 3 30 0.00 40.900 -82.300 - 2.9 3 III - ASHL NCE 1943 3 9 3 25 24.90 41.630 -81.310 - 4.4 2 V 220 LAKE NCE 1944 11 13 11 52 0.00 40.400 -84.400 - 4.1 2 III 44 SHEL NCE 1948 1 18 0 0 0.00 41.700 -83.600 - 2.9 3 III - LUCA NCE 1950 4 20 0 0 0.00 39.800 -84.200 - 3.1 3 IV - MONT NCE 1951 12 3 7 2 0.00 41.600 -81.400 - 2.9 2 IV 0.3 LAKE NCE 1952 6 20 9 38 8.60 39.640 -82.020 - 3.9 2 VI 13.4 PERR NCE 1953 5 7 23 32 0.00 39.700 -82.100 - 2.7 2 IV 0.03 PERR NCE 1953 6 12 0 0 0.00 41.700 -83.600 - 3.5 2 IV 1 LUCA NCE 1955 5 26 18 9 0.00 41.290 -81.570 - 3.3 2 V 1 CUYA NCE 1955 6 29 1 16 33.00 41.390 -81.410 - 2.7 2 IV 1.1 CUYA NCE 1956 1 27 11 3 27.00 40.500 -84.000 - 3.7 2 V 9.9 SHEL NCE 1956 1 27 12 3 0.00 40.400 -84.200 - 3.7 2 V 9.9 SHEL NCE 1957 7 23 13 3 0.00 38.700 -83.800 - 2.9 3 III - BROW NCE 1961 2 22 9 45 3.00 41.200 -83.300 - 3.7 2 V 13.4 SENE NCE 1967 4 8 5 40 30.50 39.650 -82.530 - 3.7 2 V 9.9 FAIR NCE 1968 7 26 15 2 53.70 40.430 -84.180 - 3.0 1 III - SHEL OSN 1974 9 29 2 26 19.10 41.210 -83.490 - 3.0 1 III - WOOD NCE 1975 2 3 10 31 0.00 41.300 -83.200 - 3.3 2 IV 3 SAND NCE 1975 2 16 23 21 34.40 38.880 -82.350 - 3.0 1 IV 6 GALL NCE 1977 6 17 15 39 46.90 40.570 -84.670 - 3.3 1 VI 0.6 MERC ASN/NCE 1980 10 4 11 46 58.00 39.800 -83.750 - 2.0 1 NF - CLAR ASN 1983 1 22 7 46 58.00 41.850 -81.190 - 2.7 1 NF - LAKE NCE 1983 7 5 2 58 52.90 40.430 -84.100 - 2.1 1 NF - SHEL ASN 1984 1 14 20 14 31.00 41.670 -83.450 - 2.6 1 V - LUCA ASN/NCE 1986 1 31 16 46 42.30 41.650 -81.160 5 5.0 1 VI 322 LAKE USGS 1986 2 7 18 36 22.30 41.650 -81.160 - 2.5 1 F - LAKE USGS 1986 7 12 8 19 39.50 40.550 -84.390 10 4.5 1 VI 90 MERC ASN 1987 7 13 5 49 19.41 41.903 -80.758 2 3.8 1 IV - ASHT JCU 1987 7 13 5 58 52.31 41.870 -80.740 - 2.2 1 - - ASHT JCU 1987 7 13 7 52 12.88 41.898 -80.757 - 3.0 1 IV - ASHT JCU 1987 7 13 13 5 23.60 41.899 -80.768 - 2.9 1 F - ASHT JCU 1987 7 13 18 25 11.98 41.880 -80.750 - 2.8 1 F - ASHT JCU 1987 7 13 19 0 8.50 41.899 -80.768 - 2.3 1 - - ASHT JCU 1987 7 13 19 39 19.44 41.899 -80.768 - 2.1 1 - - ASHT JCU 1987 7 13 20 53 5.46 41.899 -80.768 - 2.2 1 - - ASHT JCU 1987 7 13 23 49 14.50 41.902 -80.750 - 2.4 1 - - ASHT JCU 1987 7 14 7 47 27.26 41.902 -80.750 - 2.4 1 - - ASHT JCU 1987 7 14 14 51 11.67 41.902 -80.750 - 2.8 1 F - ASHT JCU 1987 7 16 4 49 40.66 41.895 -80.751 - 2.7 1 F - ASHT JCU 1987 7 16 6 2 25.54 41.895 -80.751 - 2.4 1 - - ASHT JCU 1987 8 13 7 52 13.00 41.931 -80.710 5 3.3 1 - - ASHT GSC 1988 3 31 16 30 3.87 41.313 -81.046 - 2.8 1 - - PORT JCU 1988 6 27 4 46 31.34 41.818 -81.229 - 2.7 1 - - LAKE JCU 1988 10 22 16 46 29.60 40.450 -84.110 - 2.2 1 - - SHEL ASN 1988 12 25 2 11 34.00 41.831 -81.030 5 2.5 1 - - LAKE GSC 1988 12 28 23 28 24.00 41.636 -81.166 5 2.8 1 - - GEAU GSC 1989 8 1 16 12 48.75 41.898 -80.758 - 2.8 1 F - ASHT JCU 1989 8 1 16 50 30.74 41.893 -80.752 - 2.9 1 F - ASHT JCU 1989 8 3 4 7 48.64 41.890 -80.740 - 2.2 1 NF - ASHT JCU 1990 1 1 23 3 4.89 41.902 -80.799 - 2.2 1 NF - ASHT JCU/OSN 1990 6 4 11 26 48.70 41.080 -83.510 - 2.3 1 F - HANC ASN 1990 7 24 23 4 38.01 41.902 -80.879 2.6 2.3 1 NF - ASHT JCU/OSN 1990 9 26 6 13 4.89 41.910 -80.760 - 2.3 1 NF - ASHT JCU/OSN 1990 11 18 9 20 52.81 41.902 -80.790 - 2.3 1 NF - ASHT JCU/OSN 1991 1 27 3 21 24.23 41.610 -81.594 9.7 3.5 1 V - CUYA JCU 1991 3 12 8 50 48.76 41.327 -81.361 - 2.3 1 NF - PORT JCU 1991 10 13 2 26 38.47 41.711 -81.054 - 2.0 1 - - LAKE JCU 1992 3 15 6 13 56.66 41.817 -81.226 - 3.4 1 IV - LAKE JCU 1992 3 15 14 49 40.02 41.800 -81.217 - 2.2 1 NF - LAKE JCU Baranoski, M.T., 2013, Structure contour map on the Precambrian unconformity surface in Ohio and related basement features (ver. 2.0): Columbus, Ohio Department of Natural Resources, Division of Geological Survey Map PG-23, scale 1:500,000, 17 p. text. Bradley, E.A., and Bennett, T.J., 1965, Earthquake history of Ohio: Bulletin of the Seismological Society of America, v. 55, p. 745-752. Dart, R.L., and Hansen, M.C., 2008, Earthquakes in Ohio and vicinity 1776-2007: Washington, D.C., U.S. Geological Survey Open-File Report 2008-1221. Earthquakes Canada, 2014, Earthquake database search: Natural Resources Canada National Earthquake Database (NEDB), accessed at http://www.earthquakescanada.nrcan.gc.ca/stndon/NEDB-BNDS/bull-eng.php. Powers, D.M., and Pavey, R.R., 2002, Shaded elevation map of Ohio: Columbus, Ohio Department of Natural Resources, Division of Geological Survey Map MG-1, scale 1:500,000. Seeber, Leonardo, and Armbruster, J.G., 1991, The NCEER-91 earthquake catalog: Improved intensity-based magnitudes and recurrence relations for U.S. earthquakes east of New Madrid: National Center for Earthquake Engineering Research Technical Report NCEER-91-0021, 98 p., accessed at http://folkworm.ceri.memphis.edu/catalogs/html/cat_nceer.html. Stover, C.W., and Coffman, J.L., 1993, Seismicity of the United States, 1568-1989 (revised): Washington, D.C., U.S. Geological Survey Professional Paper 1527, 418 p. USGS, 2013, Earthquake archive search & URL builder: U.S. Geological Survey Earthquake Hazards Program [Internet database], accessed at http://earthquake.usgs.gov/earthquakes/search/. Weston Geophysical Corporation, 1979, Evaluation of local seismicity around the Perry Nuclear Power Plant site, Appendix D of Report to the Cleveland Electric Illuminating Co.: Weston Geophysical Corporation, 102 p. Station Code Station Host ACEO Ashtabula EMA ACSO Alum Creek State Park BCSO Bloom-Carroll High School BGFO Bowling Green State University - Firelands BGSU Bowling Green State University BHSO Botkins High School BTCO Belmont College CLEO Cleveland Museum of Natural History COWO College of Wooster CSCO Clark State Community College ECCO Edison Community College GPDO Geauga Park District Observatory KSTO Kent State University - Tuscarawas KSUO Kent State University LCCO Lakeland Community College LECO Lake Erie College MACO Marietta College MOSO Mohican School MUCO Mount Union College OGSO Ohio Geological Survey - Columbus OSLO Ohio State University - Lima OSMO Ohio State University - Mansfield OSUO Ohio State University OUAO Ohio University SSUO Shawnee State University UOCO University of Cincinnati WSCO Wright State University - Celina WSDO Wright State University - Dayton YSUO Youngstown State University 1 From Baranoski (2013). YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FA COUNTY SOURCE 1992 3 26 3 43 15.27 41.870 -80.870 - 2.5 1 F - ASHT JCU/OSN 1992 3 28 8 22 44.06 41.900 -80.750 - 2.9 1 F - ASHT JCU/OSN 1992 3 31 1 54 52.11 41.913 -80.860 - 2.5 1 F - ASHT JCU/OSN 1992 4 7 1 35 22.12 41.883 -80.850 - 2.0 1 - - ASHT JCU 1992 7 4 0 0 0.00 41.180 -83.680 - 2.0 1 III - WOOD UTLO 1992 7 14 0 0 0.00 41.180 -83.680 - 2.0 1 III - WOOD UTLO 1992 10 4 23 30 0.00 41.400 -83.500 - 2.5 3 III - WOOD UTLO 1993 10 10 0 0 0.00 41.650 -83.500 - 2.0 1 III - LUCA UTLO 1993 10 16 6 30 5.32 41.820 -81.270 - 3.6 1 IV - LAKE GSC 1993 11 9 22 2 0.00 41.400 -83.500 - 2.0 1 III - WOOD UTLO 1994 4 4 15 14 44.00 40.400 -84.000 - 2.9 1 III - SHEL USGS 1994 7 9 22 13 40.60 39.045 -83.294 - 2.5 1 III - PIKE UK 1995 1 12 21 25 51.00 40.800 -82.680 - 3.3 1 - - RICH USGS 1995 2 19 12 57 6.00 39.120 -83.470 - 3.6 1 V - HIGH USGS 1995 2 23 9 32 11.99 41.870 -80.800 - 2.9 1 IV - ASHT GSC/OSN 1995 4 9 11 37 29.01 41.870 -80.770 - 2.4 1 NF - ASHT GSC/OSN 1995 5 14 20 21 8.60 38.710 -82.602 - 2.5 1 NF - LAWR UK 1998 1 27 0 38 30.24 41.870 -81.110 - 3.0 1 NF - LAKE GSC 1998 1 30 4 59 18.00 41.910 -81.110 - 2.4 1 NF - LAKE GSC 1998 11 25 2 55 7.52 41.020 -82.543 - 3.2 1 III 0.7 HURO GSC 1998 12 25 21 22 3.10 41.150 -81.460 - 2.8 1 NF - SUMM GSC 1999 9 22 10 2 18.80 41.680 -81.450 - 2.8 1 III - LAKE GSC 2000 6 7 6 19 18.00 42.010 -80.780 - 2.0 1 NF - ASHT GSC 2000 6 7 6 55 8.42 41.880 -80.710 - 2.4 1 NF - ASHT GSC/OSN 2000 8 7 2 2 30.16 41.010 -81.100 10 3.0 1 IV 0.5 PORT OSN 2000 10 20 23 26 26.54 41.910 -80.770 - 2.5 1 NF - ASHT GSC/OSN 2001 1 20 2 5 7.00 41.880 -80.780 - 2.6 1 III - ASHT OSN 2001 1 26 3 3 20.63 41.870 -80.760 2.5 4.5 1 VI 35 ASHT OSN 2001 1 26 3 11 30.00 41.870 -80.760 - 2.0 1 F - ASHT OSN 2001 1 26 3 45 25.00 41.870 -80.760 - 2.2 1 - - ASHT OSN 2001 1 26 5 11 5.00 41.870 -80.760 - 2.0 1 NF - ASHT OSN 2001 1 26 5 36 58.00 41.870 -80.760 - 3.2 1 III - ASHT OSN 2001 6 3 22 36 46.39 41.870 -80.760 2.5 3.2 1 III - ASHT OSN 2001 6 5 8 27 15.00 41.880 -80.760 - 2.2 1 II - ASHT OSN 2001 7 26 10 46 51.40 41.010 -82.550 - 2.7 1 III 0.4 HURO OSN 2002 4 28 0 7 20.90 41.850 -81.370 5 2.7 1 F - LAKE OSN 2002 5 6 22 26 51.53 38.860 -81.890 - 2.8 1 NF - MEIG USGS/OSN 2002 8 17 8 26 31.89 41.790 -80.980 - 2.0 1 NF - ASHT OSN 2003 2 10 5 34 43.07 41.950 -80.720 - 2.4 1 II - ASHT OSN/GSC 2003 5 1 6 26 57.79 41.676 -81.110 - 2.0 1 NF - LAKE GSC/OSN 2003 6 30 19 21 17.20 41.800 -81.200 4.6 3.5 1 IV 3.2 LAKE OSN/GSC 2003 7 17 0 44 10.00 41.860 -80.760 - 2.5 1 III 0.3 ASHT OSN/USGS 2003 7 22 15 54 1.20 41.872 -80.770 2.6 2.1 1 NF - ASHT LCSN 2004 1 30 12 10 4.10 40.670 -84.920 - 2.5 1 III 0.4 MERC OSN 2004 3 14 5 10 28.00 41.770 -81.240 5 2.4 1 III 0.25 LAKE OSN 2004 6 30 4 3 14.58 41.780 -81.070 5 3.3 1 III 1 LAKE OSN 2005 2 1 13 1 13.30 41.800 -81.100 5 2.5 1 F - LAKE OSN/GSC 2005 2 23 6 12 9.66 41.820 -80.960 5 2.0 1 F - ASHT OSN/GSC 2005 3 2 6 53 16.93 41.800 -80.980 5 2.2 1 NF - ASHT OSN/GSC 2005 3 13 4 2 4.49 40.680 -84.600 5 2.2 1 F - MERC OSN/GSC 2005 11 13 11 2 15.77 41.840 -81.210 6.4 2.2 1 F - LAKE OSN/LCSN 2005 12 11 5 20 2.38 41.950 -80.840 9.9 2.0 1 F - ASHT OSN/LDEO 2006 1 6 3 2 2.69 41.770 -81.450 5 2.6 1 F - LAKE OSN/GSC 2006 1 13 15 32 17.55 41.800 -81.450 7 2.3 1 F - LAKE OSN/LCSN 2006 2 10 13 30 42.00 41.750 -81.410 5 2.6 1 F - LAKE OSN/GSC 2006 2 27 20 53 20.48 41.920 -80.830 5 2.0 1 NF - ASHT OSN/GSC 2006 3 11 12 27 15.16 41.760 -81.390 5 3.0 1 F - LAKE OSN/GSC 2006 3 27 17 24 30.00 40.804 -81.413 5 2.2 1 - - LAKE GSC 2006 3 27 17 24 30.35 41.750 -81.410 5 2.1 1 NF - LAKE OSN/GSC 2006 4 10 5 55 52.49 41.920 -80.820 10 2.0 1 NF - LAKE OSN/LCSN 2006 5 12 1 51 11.07 40.740 -84.080 5 2.8 1 III - ALLE OSN 2006 5 21 14 15 28.63 41.810 -81.430 5 2.2 1 NF - LAKE OSN/GSC 2006 6 20 20 11 18.54 41.840 -81.230 4 3.8 1 F - LAKE OSN 2006 6 20 20 57 22.94 41.810 -81.240 5 2.2 1 NF - LAKE OSN 2006 6 22 10 9 45.48 41.850 -81.250 5 2.3 1 NF - LAKE GSC 2006 6 28 13 18 28.38 41.690 -81.240 5 2.3 1 F - LAKE GSC 2006 7 1 5 25 53.19 41.830 -81.250 5 2.1 1 NF - LAKE GSC 2006 8 15 6 8 54.90 40.710 -84.110 5 2.5 1 F - ALLE OSN 2006 9 14 14 50 52.11 41.790 -81.230 5 2.2 1 NF - LAKE OSN 2007 1 22 6 17 10.20 41.830 -81.210 6 2.2 1 NF - LAKE OSN 2007 3 12 23 18 16.41 41.280 -81.380 5 3.3 1 F 7.7 PORT OSN 2007 4 12 22 3 20.74 41.710 -82.930 5 2.5 1 NF - OTTA OSN 2007 4 24 1 9 50.18 41.750 -82.900 5 2.3 1 NF - OTTA OSN 2007 8 27 23 26 44.07 41.720 -81.380 5 2.1 1 F - LAKE OSN 2007 9 28 8 46 5.81 41.990 -80.600 5 2.7 1 F - ASHT OSN 2007 10 16 17 5 1.55 41.760 -81.420 5 2.4 1 NF - LAKE OSN 2007 10 17 20 4 9.74 41.750 -81.420 5 3.2 1 III - LAKE OSN 2007 10 18 22 23 4.23 41.730 -82.220 5 2.7 1 NF - LORA GSC 2008 1 9 1 34 46.70 41.720 -81.430 5 3.1 1 F - LAKE OSN 2008 8 14 18 32 16.00 41.850 -81.010 5 2.3 1 F - LAKE OSN 2008 9 18 1 4 16.57 41.780 -81.430 5 2.8 1 F 7.2 LAKE OSN 2008 9 20 19 16 43.19 41.740 -81.420 5 2.3 1 NF - LAKE OSN 2008 9 30 1 6 38.58 40.410 -84.310 5 2.8 1 IV 6.75 SHEL OSN 2009 2 14 13 16 27.16 41.840 -81.000 5 2.6 1 NF - ASHT OSN 2009 2 23 23 32 27.26 41.750 -81.440 - 2.2 1 NF - LAKE GSC 2009 4 24 13 42 46.03 38.810 -82.270 5 3.3 1 IV - GALL NCE 2009 10 21 17 59 46.85 41.800 -81.340 5 2.4 1 NF - LAKE OSN/GSC 2010 2 4 17 44 21.30 41.620 -81.460 5 2.1 1 II - LAKE OSN 2010 2 26 22 13 13.27 41.160 -83.410 5 2.4 1 III - SENE OSN 2010 4 25 2 0 36.94 41.970 -81.040 5 2.9 1 III - LAKE OSN 2010 5 14 2 27 2.15 41.390 -83.300 5 2.6 1 NF - SAND OSN/GSC 2010 5 17 21 29 5.65 41.240 -81.510 5 2.5 1 NF - SUMM OSN 2010 6 7 16 22 32.16 41.770 -81.100 - 2.3 1 F - LAKE OSN 2010 6 10 16 32 22.31 41.760 -81.430 5 2.5 1 F - LAKE OSN 2010 10 24 8 12 44.51 39.430 -81.360 5 2.8 1 III - WASH OSN 2011 3 17 10 42 20.22 41.110 -80.680 5 2.1 1 F - MAHO OSN 2011 3 17 10 53 9.51 41.110 -80.680 5 2.6 1 III 0.1 MAHO OSN 2011 4 26 7 9 46.59 40.860 -83.540 5 2.4 1 III - HANC OSN 2011 6 5 15 35 20.20 41.030 -82.080 5 3.0 1 II - MEDI OSN 2011 6 15 4 37 57.86 41.810 -81.790 5 2.0 1 NF - CUYA GSC/OSN 2011 8 13 15 41 0.77 42.250 -81.020 5 2.1 1 NF - LAKE OSN/GSC 2011 8 22 8 0 31.50 41.120 -80.730 5 2.2 1 NF - MAHO OSN/GSC 2011 8 25 19 44 20.99 41.100 -80.730 5 2.4 1 NF - MAHO OSN/GSC 2011 8 31 9 35 12.41 39.400 -81.270 5 3.0 1 III - WASH OSN 2011 8 31 17 36 2.67 39.510 -81.470 5 3.1 1 III - WASH OSN 2011 9 2 21 3 26.20 41.120 -80.690 5 2.2 1 II - MAHO OSN 2011 9 4 13 21 59.29 39.422 -81.205 5 2.6 1 III - WASH OSN/USGS 2011 9 26 1 6 9.82 41.110 -80.690 5 2.6 1 F - MAHO OSN 2011 9 30 0 52 37.58 41.110 -80.690 5 2.7 1 IV 1 MAHO OSN 2011 10 20 22 41 9.54 41.110 -80.680 5 2.3 1 F - MAHO OSN 2011 11 25 6 47 0.00 41.100 -80.690 5 2.2 1 NF - MAHO OSN/USGS 2011 12 24 6 24 57.38 41.119 -80.694 3.55 2.7 1 III - MAHO OSN/USGS 2011 12 31 20 5 0.01 41.118 -80.693 3.68 4.0 1 V - MAHO OSN/USGS 2012 1 13 22 29 33.45 41.110 -80.690 5 2.1 1 NF - MAHO OSN 2012 5 29 11 52 54.17 39.380 -81.350 2 2.1 1 F - WASH OSN 2012 9 7 21 56 35.10 41.864 -83.076 5.1 2.5 1 - - LUCA USGS 2012 9 18 21 5 19.58 39.384 -81.352 4 2.1 1 NF - WASH OSN 2012 12 1 7 32 2.00 39.041 -82.143 - 2.1 1 NF - MEIG OSN 2013 3 8 22 32 20.72 41.705 -81.468 5 2.7 1 F - LAKE OSN 2013 3 17 22 49 26.07 41.658 -80.885 5 2.2 1 NF - ASHT OSN 2013 3 27 9 10 50.08 38.643 -82.178 5 2.5 1 NF - GALL OSN/USGS 2013 7 1 7 48 43.31 41.793 -81.292 5 3.2 1 F - LAKE OSN 2013 10 6 19 37 2.93 41.850 -81.008 5 2.4 1 F - LAKE OSN 2013 10 21 11 14 15.49 39.668 -83.073 20 2.0 1 NF - PICK OSN 2013 11 17 1 35 50.00 42.217 -81.191 5 2.5 1 - - LAKE GSC 2013 11 20 17 59 39.82 39.445 -82.205 8 3.5 1 III 36.8 ATHE OSN 2014 1 20 6 50 18.67 41.408 -81.906 13 2.1 1 NF - CUYA OSN 2014 1 28 8 15 54.48 41.887 -81.701 5 2.0 1 NF - CUYA OSN 2014 3 5 3 5 18.00 41.033 -80.543 5 2.3 1 NF - MAHO OSN 2014 3 10 6 26 45.00 41.010 -80.543 5 3.0 1 F - MAHO OSN 2014 3 10 6 42 44.00 41.009 -80.555 5 2.4 1 F - MAHO OSN 2014 3 10 15 3 47.00 41.101 -80.530 5 2.2 1 NF - MAHO OSN 2014 3 10 15 44 6.00 41.009 -80.532 5 2.6 1 F - MAHO OSN 2014 3 11 7 1 0.00 41.003 -80.534 5 2.1 1 NF - MAHO OSN 2014 4 8 16 2 28.30 41.811 -81.004 5 2.2 1 F - LAKE OSN YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FA STATE / PROVINCE SOURCE 1817 9 5 0 0 38.500 -84.500 - 3.1 3 IV - KY NCE 1824 7 15 16 20 39.700 -80.500 - 4.1 2 IV 169 WV NCE 1839 9 5 0 0 38.600 -83.800 - 3.1 3 IV - KY NCE 1857 2 27 20 30 42.220 -81.050 - 3.9 2 V 29.7 ONT NCE 1869 2 20 0 0 38.100 -84.500 - 3.4 3 V - KY NCE 1876 2 20 8 0 41.910 -83.480 - 3.3 3 III - MI NCE 1877 8 17 16 50 42.300 -83.300 - 3.1 2 V 0.5 MI NCE 1883 5 23 4 30 38.400 -82.600 - 3.1 3 IV - KY NCE 1890 12 15 13 0 41.410 -80.390 - 2.9 3 II - PA NCE 1894 11 24 4 0 39.270 -81.560 - 3.8 3 IV - WV NCE 1895 8 19 15 0 38.530 -83.750 - 3.2 2 III 0.5 KY NCE 1897 6 17 0 0 38.050 -84.500 - 2.9 3 II - KY NCE 1902 3 5 8 0 38.140 -83.760 - 3.8 3 IV - KY NCE 1909 10 22 0 0 38.900 -84.500 - 2.5 3 II - KY NCE 1933 5 28 15 10 38.600 -83.700 - 3.4 2 V 1.8 KY NCE 1936 8 26 8 55 41.400 -80.400 - 2.9 3 III - PA NCE 1947 8 10 2 46 41.3 41.930 -85.000 - 4.5 2 VI 180 MI NCE 1970 8 11 6 14 25.5 38.230 -82.050 10 3.2 2 IV 1.6 WV NCE 1974 6 5 0 16 40.2 38.480 -84.750 10 3.2 1 VI - KY NCE 1974 10 20 15 13 55.6 39.060 -81.610 4 3.8 2 V 20 WV NCE 1976 2 2 21 14 2.3 41.880 -83.730 5 3.4 1 III 1.6 MI NCE 1979 11 9 21 29 59.8 38.490 -82.810 - 3.6 1 V 9 KY NCE 1980 7 27 18 52 21.4 38.190 -83.890 16 5.2 1 VII 667 KY USGS 1980 7 31 9 27 2.3 38.190 -83.930 19 2.5 1 IV - KY NCE 1980 8 20 9 34 53.4 41.990 -82.990 - 3.2 1 - 18 ONT NCE 1980 8 25 11 41 38.3 38.190 -83.790 13 2.5 1 IV 0.7 KY NCE 1980 12 30 3 7 8.1 38.200 -83.910 11 3.1 2 III 0.7 KY NCE 1983 8 17 14 3 15 38.470 -82.770 10 3.5 1 V - KY NCE 1985 4 14 11 39 51.3 41.400 -80.370 - 2.0 1 - - PA ASN 1985 4 14 11 39 54 41.583 -80.402 18 3.2 0 - - PA GSC 1985 7 11 10 13 20 42.360 -80.750 - 2.6 1 - - ONT GSC 1988 9 7 2 28 9.5 38.143 -83.878 10 4.6 1 VI 103 KY USGS 1989 7 15 0 3 2.6 38.606 -83.569 - 3.1 1 V - KY USGS 1990 4 17 10 27 34.7 40.460 -84.852 - 3.0 1 IV - IN USGS 1990 9 8 0 3 57.4 38.061 -83.731 - 3.3 1 V - KY USGS 1991 6 28 18 34 51.9 38.276 -81.668 - 3.2 1 - - WV USGS 1998 3 14 7 24 55 42.130 -82.480 - 2.6 1 - - ONT GSC 1998 9 25 19 52 52.07 41.495 -80.388 - 5.2 1 VI - PA USGS 1998 10 9 8 41 50 41.677 -80.375 18 2.1 0 - - PA GSC 1 Source USGS. Magnitude Scale Mercalli Scale I Detected only by sensitive instruments     II Felt only by a few persons at rest, especially on upper floors of buildings; delicately suspended objects may swing III Felt noticeably indoors, especially on upper floors of buildings, but not always recognized as earthquake; standing autos may rock slightly; vibrations like a passing truck IV During the day, felt indoors by many, outdoors by few; at night, some awakened; dishes, windows, doors disturbed; walls make creaking sound; sensation like heavy truck hitting building; standing autos rock noticeably V Felt by most people; some breakage of dishes, windows, and plaster; unstable objects overturned; disturbance of trees, poles, and other tall objects VI Felt by all, many frightened and run outdoors; some heavy furniture may move; falling plaster and chimneys, damage slight VII Everyone runs outdoors; damage to buildings varies depending on quality of construction; noticed by people driving autos VIII Panel walls thrown out of frames; walls, monuments, chimneys fall; sand and mud ejected; drivers of autos disturbed IX Buildings shifted off foundations, frame structures thrown out of plumb; ground cracked; underground pipes broken X Most masonry and frame structures destroyed; ground badly cracked, rails bent, landslides; sand and mud shift; water splashes over river banks XI Few structures remain standing; bridges destroyed; broad fissures in ground, pipes broken, landslides, rails bent XII Damage total; waves seen on ground surface, lines of sight and level distorted, objects thrown up into the air 7.3 + Description 0 - 2.9 2.9 - 4.1 4.1 - 5.4 5.4 - 7.3 PLEASE NOTE: The faults shown are taken from Baranoski (2013). EXPLANATION 3 ACSO U D Fault number (see table) Throw - U (up), D (down) Ohio Seismic Network station (see table) Faults Approximate Inferred Documented Noninstrumental event Magnitude 2.0 2.9 3.0 3.9 4.0 4.9 5.0 5.4 Instrumental event YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FA STATE / PROVINCE SOURCE 1998 11 5 3 16 53 42.270 -81.580 - 2.3 1 NF - ONT GSC 1998 11 7 2 17 12 41.566 -80.315 5 2.3 0 - - PA GSC 1999 1 24 22 46 19 42.260 -82.330 - 2.4 1 F - ONT GSC 1999 1 27 1 38 7 42.330 -82.300 - 2.6 1 F - ONT GSC 1999 1 27 1 57 19 42.310 -82.310 - 2.5 1 F - ONT GSC 1999 6 3 4 2 32 42.280 -82.230 - 2.3 1 - - ONT GSC 1999 10 30 8 2 48 42.060 -80.400 - 2.5 1 - - PA GSC 2001 10 23 1 33 18.8 42.340 -84.760 - 2.9 1 III - MI OSN/GSC 2004 7 15 4 30 44 42.029 -82.365 18 2.2 0 - - ONT GSC 2004 9 23 19 10 11 38.317 -83.530 11 2.8 3 - - KY USGS 2005 2 10 4 39 15 41.679 -80.319 5 2.0 0 - - PA GSC 2005 3 1 20 44 11 42.136 -82.573 5 2.4 0 - - ONT GSC 2005 3 2 2 50 4 42.234 -81.160 5 2.0 0 - - ONT GSC 2005 4 20 21 36 9 41.616 -80.409 5 2.2 0 - - PA GSC 2005 8 13 23 43 28 42.068 -80.500 5 2.4 0 - - PA GSC 2005 9 5 20 2 35.79 38.190 -83.930 12.8 2.5 0 - - KY USGS 2006 5 7 4 32 49 42.105 -82.450 5 2.2 0 - - ONT GSC 2006 10 11 3 51 22 42.093 -83.144 5 2.3 0 - - ONT GSC 2007 1 17 14 50 48 42.330 -81.817 5 2.1 0 - - ONT GSC 2008 7 21 1 41 30 41.473 -80.367 5 2.3 0 - - PA GSC 2009 3 7 9 54 10 42.099 -82.477 18 2.2 0 - - ONT GSC 2009 3 20 17 11 11 42.019 -83.117 5 2.1 0 - - ONT GSC 2009 3 26 15 51 18 42.053 -83.174 5 2.1 0 - - ONT GSC 2010 3 8 10 10 38.56 42.163 -83.070 18 2.5 0 - - ONT GSC/USGS 2010 9 13 15 8 45 38.165 -82.022 6 2.3 1 NF - WV USGS 2010 12 10 21 26 32.79 41.514 -80.322 5 2.2 0 NF - PA GSC/USGS 2011 2 23 14 21 32.42 42.157 -82.430 5 3.0 0 - - ONT GSC/USGS 2011 2 24 10 13 51 42.138 -82.373 5 2.7 0 - - ONT GSC 2012 3 16 15 5 53.57 38.234 -81.748 5 2.6 0 - - WV USGS 2013 2 17 4 12 55 42.018 -82.224 5 2.5 0 NF - ONT GSC 2013 7 18 21 44 38.83 38.712 -83.957 8 2.4 1 NF - KY UK/OSN 2013 7 23 15 0 40.42 38.703 -83.940 5 2.7 1 F - KY UK/OSN 2013 10 11 2 25 40.8 38.506 -82.798 5.7 2.2 0 - - KY USGS 2013 11 2 13 20 27.8 38.571 -83.775 7.8 2.1 0 - - KY USGS 2013 11 22 19 42 11.5 38.109 -83.519 12.3 2.1 0 - - KY USGS 2013 12 23 10 58 50 38.145 -83.865 10.3 2.3 0 - - KY USGS 2014 2 9 22 34 4.98 41.482 -80.364 5 2.2 0 NF - PA USGS 2014 6 6 22 15 40 38.644 -81.586 29 2.6 1 NF - WV USGS YEAR, MO (month), DA (day), HR (hour), MN (minute) SEC (second) Time data; may be very imprecise for noninstrumental historical events. Dates and times are given in Universal Coordinated Time (UTC), which is essentially equivalent to Greenwich Mean Time (GMT). UTC is five hours later than Eastern Standard Time (EST, local time in Ohio) and four hours later than Eastern Daylight Time (EDT). Owing to the difference between UTC and EST or EDT, some earthquakes on the list are designated as occurring on the day after the actual date in local time. LAT N, LON W Latitude and longitude in decimal degrees. West longitude is a negative (-) number in many computer databases. The number of decimal places is indicative of the accuracy of the location; however, some historic events may be off by several tenths of a degree or more. One geocentric degree is equal to approximately 111 km (69 mi). DP Calculated depth of the earthquake in km. All Ohio earthquakes are shallow, commonly between 5 and 10 km. Standard practice among seismologists to constrain (fix) the depth of an instrumentally located event to 5 km in Ohio. Accurate hypocentral depth determinations for small, local earthquakes require seismometers to be very close to the event. A "-" indicates that no depth information is available and it is uncertain what fixed depth was used in the location program. MAG Magnitude of the earthquake. Recent, instrumentally located events in Ohio are mostly mbLg magnitudes. Magnitudes for older, preinstrumental events were calculated by J. G. Armbruster using maximum Modified Mercalli intensity or felt area (see Seeber and Armbruster, 1991, for methodology). In general, earthquakes having magnitudes below 2.0 are not felt. An arbitrary cutoff of 2.0 magnitude was selected for this catalog in order to include all events that were, or may have been, felt by people. Not included in the catalog are aftershocks and other instrumental events below 2.0 magnitude. MT Magnitude type. Numerals indicate basis of magnitude determination. 1 = instrumental magnitude, 2 = felt area, 3 = maximum Modified Mercalli intensity. MMI Modified Mercalli intensity. MMI is a subjective, noninstrumental scale that uses Roman numerals (I XII) and is based on observed effects and damage from an earthquake (see chart). F indicates that the event was felt but no MMI was assigned. NF indicates that no felt reports were received. A "-" indicates that no information was available. FA Felt area in thousand square km. COUNTY County in which the epicenter is located, noted by the first four letters of the county name. Epicenters in Lake Erie are attributed to the closest onshore county. STATE/PROVINCE Locations of border-region and other felt events are defined by standard postal abbreviations for states and the Canadian province of Ontario (ONT). SOURCE Source of the data for a particular event. If two institutions are listed, it indicates that both institutions contributed to the solution or that the event has been relocated by the Ohio Seismic Network using the former institution s phase-arrival data. ASN Anna Seismic Network. Operated in western Ohio by the University of Michigan from 1977 to 1992. CERI Center for Earthquake Research and Information, University of Memphis (Tennessee). GSC Geological Survey of Canada. JCU John Carroll University Seismic Observatory. Operated in northeastern Ohio between 1900 and 1992. LCSN Lamont-Doherty Cooperative Seismic Network NCE National Center for Earthquake Engineering Research (NCEER, now MCEER, Multidisciplinary Center for Earthquake Engineering Research). Catalog of Seeber and Armbruster (1991). Includes additional events provided to the ODNR Division of Geological Survey by J. G. Armbruster but not yet included in the formal NCEER catalog. OSN Ohio Seismic Network of the ODNR Division of Geological Survey. Began statewide operation in 1999. UK University of Kentucky Seismic Network. USGS U.S. Geological Survey. UTLO University of Toledo seismic station. 1

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Page 1: EARTHQUAKE EPICENTERS IN OHIO AND …geosurvey.ohiodnr.gov/.../EG-2_Ver-2_2014_low-res.pdf270 74 480 670 71 277 80 70 490 75 275 70 271 80 70 76 90 275 75 75 75 71 80 80 90 77 77 70

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L a k e E r i e

-81° W

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-82° W

-82° W

-83° W

-83° W

-84° W

-84° W-85° W

42° N42° N

41° N 41° N

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Map EG-2VERSION 2.0Revised 6/2014EARTHQUAKE EPICENTERS IN OHIO AND ADJACENT AREAS

GIS Cartography by Donovan M. Powers and Dean R. MartinDatabase Administator: Joseph G. Wells

STATE OF OHIODEPARTMENT OF NATURAL RESOURCES

DIVISION OF GEOLOGICAL SURVEYThomas J. Serenko, Chief by

Michael C. Hansen

This map depicts the approximate locations of earthquakes that were felt in Ohio or near the state border thathad instrumental magnitudes of 2.0 or greater. For purposes of graphic display, some events are not plottedprecisely at their listed coordinates (see catalog at right), especially in areas of multiple events.Noninstrumental earthquake locations and magnitudes have been calculated from historical accounts,including newspaper articles, scientific publications, published and unpublished government reports andrecords, and a variety of other sources. Because of the paucity of original reports for some earthquakes, theselocations and magnitudes may be very imprecise; for some early events, locational errors may be tens ofkilometers. Two eighteenth-century events, in 1776 and 1779, are not plotted on the map because they areknown only from single felt reports recorded by Moravian missionaries in Coshocton County; theseearthquakes may have had epicenters beyond Ohio borders. This map includes most of the small-to-moderate(2.0 magnitude or greater) earthquakes that were beyond the state border but were, or may have been, felt inOhio.

Instrumental recording of earthquakes in Ohio began about 1900 at St. Ignatius College (now John CarrollUniversity) in Cleveland. In 1927, Xavier University in Cincinnati established a seismic station that operateduntil the late 1960s. Bowling Green State University operated a seismic station during the 1970s through themid-1980s. The University of Toledo established a seismic station in the early 1980s. Despite this longhistory of instrumental recording in Ohio, there were never sufficient numbers of stations to precisely locatesmall earthquakes occurring within the state. Therefore, instrumental locations of small earthquakes in Ohioduring this period probably have no greater precision than events located on the basis of felt reports. From1977 to 1992, the University of Michigan operated a nine-station seismic network in the Anna area ofwestern Ohio and precisely located a number of events in this region. In 1986, John Carroll Universityestablished a multistation seismic network in northeastern Ohio and located a number of small earthquakes inthis area; this network ceased operation in 1992.

From 1992 until establishment of the Ohio Seismic Network in 1999, Ohio lacked in-state capability to locateearthquakes. During this period, some small events were detected and instrumentally located by out-of-statenetworks, including the University of Kentucky and the Geological Survey of Canada. However, someinstrumental locations are imprecise because of seismic-station distance and distribution that precludeoptimal triangulation. Seismologists express this epicentral uncertainty by calculating the error ellipse for anevent. Some poorly recorded events may have error ellipses with axes of tens of kilometers (km), whereasprecisely located events may have error ellipses of less than one km. The uncertainties of locations ofinstrumental and noninstrumental earthquakes is well known to seismologists, geologists, and others whowork with earthquake data; however, such information is noted in this report so that individuals andorganizations are aware that the placement on a map of a symbol depicting an earthquake location is agraphic representation of an approximate epicenter based upon available data. Therefore, site-specificdecisions should be based on the quality of the original data for a specific earthquake.

The complete database of Ohio and border-region earthquakes is available online athttps://geosurvey.ohiodnr.gov/earthquakes-ohioseis/ohioseis-home. The database includes a listing ofsome larger earthquakes that were felt or caused damage in Ohio but are beyond the border region as well asa list of doubtful or uncertain events that were reported as earthquakes but were probably of nonseismicorigin. Although derived from previous compilations by academic researchers and governmental institutions,the database has depended heavily on the report and catalog by Seeber and Armbruster (1991), with additionsby John G. Armbruster. Many older events are poorly known and require additional research of newspaperaccounts for complete documentation. Historical research occasionally reveals earthquakes that have not beennoted on previous lists. The ODNR Division of Geological Survey welcomes such new information.

OHIO EARTHQUAKE CATALOG

KEY TO CATALOG HEADINGS

MAPPING CONVENTIONS

FAULTS & STRUCTURAL FEATURES

I thank John G. Armbruster of Lamont-Doherty Earth Observatory for his interest in historic earthquakes inOhio and adjacent areas and for generously sharing these data with me through the years. Research on historicalearthquakes in northeastern Ohio by Weston Geophysical Corporation (1979), compiled as part of the impactstatement on the Perry Nuclear Power Plant, was of considerable help in compilation of the Ohio catalog.

ACKNOWLEDGMENTS

REFERENCES & DATA SOURCES

OHIO SEISMIC NETWORK STATIONS

CATALOG OF BORDER REGION EARTHQUAKES

Map No. Structural Feature

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0 25 50 miles

0 50 kilometers

SCALE 1:500,000

Projection is Ohio state plane coordinate system, south zoneNorth American Datum 1983

Base map derived from Ohio Department of Transportation andOhio Environmental Protection Agency datasets

10 0 10 20 30 Miles

10 0 10 20 30 Kilometers

MODIFIED MERCALLI INTENSITY SCALE1

Recommended bibliographic citation:

Hansen, M.C., 2014, Earthquake epicenters in Ohio and adjacent areas (ver. 2.0): Columbus, OhioDepartment of Natural Resources, Division of Geological Survey Map EG-2, scale 1:500,000.

This product of the Ohio Department of Natural Resources (ODNR), Division of Geological Survey is intended to providegeneral information only and should not be used for any other purpose. It is not intended for resale or to replace site-specific investigations. These data were complied by the ODNR Division of Geological Survey, which reserves thepublication rights to this material. If these data are used in the compilation of other data sets or maps for distribution orpublication, this source must be referenced.

A page-size (8-1/2" x 11") version of this product may be downloaded for free online at:http://geosurvey.ohiodnr.gov/portals/geosurvey/PDFs/OhioSeis/epicentr.pdf

The information contained herein may be updated or edited in the future. Future releases of this material, if altered, willdisplay a revision date. Users should check to ensure they have the latest version and reference the appropriate revisiondate if it is being used in other works.

Neither the Ohio Department of Natural Resources, nor any agency thereof, nor any of their employees, contractors, orsubcontractors, make any warranty, expressed or implied, nor assume any legal liability or responsibility for the accuracy,completeness, or usefulness of this product. Any use thereof for a purpose other than that for which said information orproduct was intended shall be solely at the risk of the user.

www.OhioGeology.com

YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FA COUNTY SOURCE1804 5 5 0 0 0.00 39.100 -84.200 - 2.9 2 III - CLER OSN1834 11 20 18 30 0.00 39.600 -84.300 - 3.5 2 IV - MONT OSN1836 7 9 2 15 0.00 41.500 -81.700 - 3.1 3 IV - CUYA NCE1843 6 19 23 0 0.00 40.100 -83.800 - 3.5 3 IV 1.1 CHAM OSN1848 4 6 0 0 0.00 39.650 -82.530 - 3.7 2 IV 24.3 FAIR NCE1850 10 1 10 25 0.00 41.420 -81.550 - 3.2 3 IV - CUYA NCE1854 1 11 1 0 0.00 39.400 -83.700 - 3.5 3 IV - CLIN CERI1858 4 10 11 30 0.00 41.700 -81.300 - 3.3 3 IV - LAKE NCE1859 9 0 0 0 0.00 39.100 -84.200 - 2.5 2 F - CLER OSN1864 0 0 0 0 0.00 39.100 -84.200 - 2.5 2 F - CLER OSN1868 2 7 1 0 0.00 41.500 -81.600 - 3.0 2 F - CUYA OSN1870 1 16 16 15 0.00 39.710 -82.600 - 2.9 3 II - FAIR NCE1873 1 4 23 40 0.00 40.200 -83.000 - 3.8 3 IV - DELA NCE1873 4 23 4 14 0.00 39.700 -84.200 - 3.0 3 IV - MONT NCE1875 6 18 13 43 0.00 40.200 -84.000 - 4.7 2 VII 120.6 SHEL NCE1876 6 0 0 0 0.00 40.400 -84.200 - 3.4 3 V - SHEL NCE1877 1 23 21 0 0.00 38.800 -83.500 - 3.4 2 III 2.4 ADAM NCE1881 8 30 5 0 0.00 39.200 -83.700 - 2.9 3 III - HIGH NCE1882 2 9 20 0 0.00 40.400 -84.200 - 3.1 2 V 0.25 SHEL NCE1883 1 5 10 30 0.00 41.350 -82.100 - 3.0 2 F - LORA OSN1884 9 19 19 14 0.00 40.700 -84.100 - 4.8 2 VI 373 ALLE USGS1884 12 23 23 0 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE1885 1 18 10 30 0.00 41.150 -81.550 - 3.8 2 IV 10.9 SUMM NCE1886 5 3 21 30 0.00 39.360 -82.240 - 3.8 2 V 24.3 ATHE NCE/OSN1886 9 11 9 0 0.00 40.970 -81.700 - 3.1 2 IV - WAYN NCE1888 2 9 20 0 0.00 41.490 -81.690 - 3.3 3 III - CUYA NCE1888 2 11 2 0 0.00 41.000 -81.500 - 3.4 2 V - SUMM NCE/OSN1889 9 0 0 0 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE1892 4 15 5 25 0.00 40.550 -84.570 - 3.8 3 IV - MERC NCE1896 3 15 7 0 0.00 40.300 -84.200 - 3.1 3 IV - SHEL NCE1898 10 29 6 0 0.00 41.490 -81.690 - 2.9 3 II - CUYA NCE1899 9 14 3 0 0.00 41.170 -82.120 - 3.3 3 III - LORA NCE1899 11 12 14 0 0.00 39.300 -83.000 - 3.1 3 IV - ROSS NCE1901 5 17 7 0 0.00 38.730 -82.990 - 4.3 2 VI 66.2 SCIO NCE1906 4 20 17 30 0.00 41.500 -81.700 - 2.9 3 III - CUYA NCE1925 3 27 4 6 0.00 39.800 -83.900 - 3.4 3 V - GREE NCE1925 4 4 0 0 0.00 39.100 -84.500 - 2.5 3 II - HAMI NCE1925 10 0 0 0 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE1926 10 28 8 42 0.00 41.700 -83.600 - 3.4 3 III - LUCA NCE1926 10 28 11 0 0.00 41.700 -83.600 - 3.1 3 IV - LUCA NCE1926 11 5 14 53 0.00 39.100 -82.100 - 3.6 2 VII 0.9 MEIG NCE1927 2 17 5 30 0.00 40.700 -82.500 - 3.1 3 IV - RICH NCE1927 2 17 6 0 0.00 40.700 -82.500 - 2.5 3 II - RICH NCE1928 10 27 0 0 0.00 40.400 -84.100 - 3.0 2 III 0.25 SHEL NCE1929 3 8 9 6 0.00 40.400 -84.200 - 3.7 2 V 13.4 SHEL NCE1929 6 10 0 0 0.00 41.500 -81.700 - 2.9 3 III - CUYA NCE1930 6 26 21 45 0.00 40.500 -84.000 - 3.2 2 IV 2 AUGL NCE1930 6 27 7 23 0.00 40.500 -84.000 - 3.1 3 IV - AUGL NCE1930 7 11 0 15 0.00 40.600 -83.200 - 3.1 3 IV - MARI NCE1930 9 29 21 15 0.00 40.300 -84.200 - 2.9 3 III - SHEL NCE1930 9 30 20 40 0.00 40.300 -84.300 - 4.2 2 VII 0.1 SHEL NCE1931 3 21 15 48 0.00 40.400 -84.200 - 3.0 2 III 0.3 SHEL NCE1931 4 1 0 15 0.00 40.400 -84.000 - 2.9 3 III - SHEL NCE1931 9 20 23 4 54.00 40.430 -84.270 - 4.7 2 VII 120.6 SHEL NCE1931 10 9 14 30 0.00 40.400 -84.200 - 2.9 3 III - SHEL NCE1933 2 23 3 20 0.00 40.400 -84.200 - 3.3 2 IV 4.9 SHEL NCE1936 1 31 19 30 0.00 41.200 -83.200 - 3.1 3 IV - SENE NCE1936 1 31 20 0 0.00 41.200 -83.200 - 2.5 3 II - SENE NCE1936 10 8 16 30 0.00 39.300 -84.400 - 3.3 2 III 1.8 HAMI NCE1936 12 26 1 15 0.00 39.100 -84.500 - 2.9 3 III - HAMI NCE1936 12 26 2 5 0.00 39.100 -84.500 - 2.9 3 III - HAMI NCE1937 3 2 14 47 33.30 40.490 -84.270 - 4.9 2 VII 268.3 SHEL NCE1937 3 3 9 50 0.00 40.700 -84.000 - 3.2 2 V 0.5 ALLE NCE1937 3 3 9 55 0.00 40.700 -84.000 - 2.9 3 III - ALLE NCE1937 3 9 5 44 35.50 40.470 -84.280 - 5.4 2 VIII 489 SHEL NCE/USGS1937 4 23 17 15 0.00 40.700 -84.000 - 3.1 2 III 0.7 ALLE NCE1937 4 27 17 0 0.00 40.700 -84.000 - 3.1 2 III 0.7 ALLE NCE1937 5 2 17 5 0.00 40.700 -84.000 - 3.1 3 IV - ALLE NCE1937 10 17 4 25 0.00 39.100 -84.500 - 2.9 2 III 0.15 HAMI NCE1939 3 18 6 0 0.00 40.400 -84.000 - 2.5 3 II - SHEL NCE1939 3 18 14 3 0.00 40.400 -84.000 - 3.3 2 IV 1.3 SHEL NCE1939 6 18 3 20 0.00 40.300 -84.000 - 3.1 2 IV 1 SHEL NCE1939 7 9 12 50 0.00 40.300 -84.000 - 2.5 3 II - SHEL NCE1940 6 16 4 30 0.00 40.900 -82.300 - 3.1 3 IV - ASHL NCE1940 7 28 9 30 0.00 40.900 -82.300 - 2.9 3 III - ASHL NCE1940 8 15 10 35 0.00 40.900 -82.300 - 2.9 3 III - ASHL NCE1940 8 20 3 30 0.00 40.900 -82.300 - 2.9 3 III - ASHL NCE1943 3 9 3 25 24.90 41.630 -81.310 - 4.4 2 V 220 LAKE NCE1944 11 13 11 52 0.00 40.400 -84.400 - 4.1 2 III 44 SHEL NCE1948 1 18 0 0 0.00 41.700 -83.600 - 2.9 3 III - LUCA NCE1950 4 20 0 0 0.00 39.800 -84.200 - 3.1 3 IV - MONT NCE1951 12 3 7 2 0.00 41.600 -81.400 - 2.9 2 IV 0.3 LAKE NCE1952 6 20 9 38 8.60 39.640 -82.020 - 3.9 2 VI 13.4 PERR NCE1953 5 7 23 32 0.00 39.700 -82.100 - 2.7 2 IV 0.03 PERR NCE1953 6 12 0 0 0.00 41.700 -83.600 - 3.5 2 IV 1 LUCA NCE1955 5 26 18 9 0.00 41.290 -81.570 - 3.3 2 V 1 CUYA NCE1955 6 29 1 16 33.00 41.390 -81.410 - 2.7 2 IV 1.1 CUYA NCE1956 1 27 11 3 27.00 40.500 -84.000 - 3.7 2 V 9.9 SHEL NCE1956 1 27 12 3 0.00 40.400 -84.200 - 3.7 2 V 9.9 SHEL NCE1957 7 23 13 3 0.00 38.700 -83.800 - 2.9 3 III - BROW NCE1961 2 22 9 45 3.00 41.200 -83.300 - 3.7 2 V 13.4 SENE NCE1967 4 8 5 40 30.50 39.650 -82.530 - 3.7 2 V 9.9 FAIR NCE1968 7 26 15 2 53.70 40.430 -84.180 - 3.0 1 III - SHEL OSN1974 9 29 2 26 19.10 41.210 -83.490 - 3.0 1 III - WOOD NCE1975 2 3 10 31 0.00 41.300 -83.200 - 3.3 2 IV 3 SAND NCE1975 2 16 23 21 34.40 38.880 -82.350 - 3.0 1 IV 6 GALL NCE1977 6 17 15 39 46.90 40.570 -84.670 - 3.3 1 VI 0.6 MERC ASN/NCE1980 10 4 11 46 58.00 39.800 -83.750 - 2.0 1 NF - CLAR ASN1983 1 22 7 46 58.00 41.850 -81.190 - 2.7 1 NF - LAKE NCE1983 7 5 2 58 52.90 40.430 -84.100 - 2.1 1 NF - SHEL ASN1984 1 14 20 14 31.00 41.670 -83.450 - 2.6 1 V - LUCA ASN/NCE1986 1 31 16 46 42.30 41.650 -81.160 5 5.0 1 VI 322 LAKE USGS1986 2 7 18 36 22.30 41.650 -81.160 - 2.5 1 F - LAKE USGS1986 7 12 8 19 39.50 40.550 -84.390 10 4.5 1 VI 90 MERC ASN1987 7 13 5 49 19.41 41.903 -80.758 2 3.8 1 IV - ASHT JCU1987 7 13 5 58 52.31 41.870 -80.740 - 2.2 1 - - ASHT JCU1987 7 13 7 52 12.88 41.898 -80.757 - 3.0 1 IV - ASHT JCU1987 7 13 13 5 23.60 41.899 -80.768 - 2.9 1 F - ASHT JCU1987 7 13 18 25 11.98 41.880 -80.750 - 2.8 1 F - ASHT JCU1987 7 13 19 0 8.50 41.899 -80.768 - 2.3 1 - - ASHT JCU1987 7 13 19 39 19.44 41.899 -80.768 - 2.1 1 - - ASHT JCU1987 7 13 20 53 5.46 41.899 -80.768 - 2.2 1 - - ASHT JCU1987 7 13 23 49 14.50 41.902 -80.750 - 2.4 1 - - ASHT JCU1987 7 14 7 47 27.26 41.902 -80.750 - 2.4 1 - - ASHT JCU1987 7 14 14 51 11.67 41.902 -80.750 - 2.8 1 F - ASHT JCU1987 7 16 4 49 40.66 41.895 -80.751 - 2.7 1 F - ASHT JCU1987 7 16 6 2 25.54 41.895 -80.751 - 2.4 1 - - ASHT JCU1987 8 13 7 52 13.00 41.931 -80.710 5 3.3 1 - - ASHT GSC1988 3 31 16 30 3.87 41.313 -81.046 - 2.8 1 - - PORT JCU1988 6 27 4 46 31.34 41.818 -81.229 - 2.7 1 - - LAKE JCU1988 10 22 16 46 29.60 40.450 -84.110 - 2.2 1 - - SHEL ASN1988 12 25 2 11 34.00 41.831 -81.030 5 2.5 1 - - LAKE GSC1988 12 28 23 28 24.00 41.636 -81.166 5 2.8 1 - - GEAU GSC1989 8 1 16 12 48.75 41.898 -80.758 - 2.8 1 F - ASHT JCU1989 8 1 16 50 30.74 41.893 -80.752 - 2.9 1 F - ASHT JCU1989 8 3 4 7 48.64 41.890 -80.740 - 2.2 1 NF - ASHT JCU1990 1 1 23 3 4.89 41.902 -80.799 - 2.2 1 NF - ASHT JCU/OSN1990 6 4 11 26 48.70 41.080 -83.510 - 2.3 1 F - HANC ASN1990 7 24 23 4 38.01 41.902 -80.879 2.6 2.3 1 NF - ASHT JCU/OSN1990 9 26 6 13 4.89 41.910 -80.760 - 2.3 1 NF - ASHT JCU/OSN1990 11 18 9 20 52.81 41.902 -80.790 - 2.3 1 NF - ASHT JCU/OSN1991 1 27 3 21 24.23 41.610 -81.594 9.7 3.5 1 V - CUYA JCU1991 3 12 8 50 48.76 41.327 -81.361 - 2.3 1 NF - PORT JCU1991 10 13 2 26 38.47 41.711 -81.054 - 2.0 1 - - LAKE JCU1992 3 15 6 13 56.66 41.817 -81.226 - 3.4 1 IV - LAKE JCU1992 3 15 14 49 40.02 41.800 -81.217 - 2.2 1 NF - LAKE JCU

Baranoski, M.T., 2013, Structure contour map on the Precambrian unconformity surface in Ohio and related basement features (ver. 2.0): Columbus, Ohio Department of Natural Resources, Division of Geological Survey Map PG-23, scale 1:500,000, 17 p. text.

Bradley, E.A., and Bennett, T.J., 1965, Earthquake history of Ohio: Bulletin of the Seismological Society of America, v. 55, p. 745-752.

Dart, R.L., and Hansen, M.C., 2008, Earthquakes in Ohio and vicinity 1776-2007: Washington, D.C., U.S. Geological Survey Open-File Report 2008-1221.

Earthquakes Canada, 2014, Earthquake database search: Natural Resources Canada National Earthquake Database (NEDB), accessed at http://www.earthquakescanada.nrcan.gc.ca/stndon/NEDB-BNDS/bull-eng.php.

Powers, D.M., and Pavey, R.R., 2002, Shaded elevation map of Ohio: Columbus, Ohio Department of Natural Resources, Division of Geological Survey Map MG-1, scale 1:500,000.

Seeber, Leonardo, and Armbruster, J.G., 1991, The NCEER-91 earthquake catalog: Improved intensity-based magnitudes and recurrence relations for U.S. earthquakes east of New Madrid: National Center for Earthquake Engineering Research Technical Report NCEER-91-0021, 98 p., accessed at http://folkworm.ceri.memphis.edu/catalogs/html/cat_nceer.html.

Stover, C.W., and Coffman, J.L., 1993, Seismicity of the United States, 1568-1989 (revised): Washington, D.C., U.S. Geological Survey Professional Paper 1527, 418 p.

USGS, 2013, Earthquake archive search & URL builder: U.S. Geological Survey Earthquake Hazards Program [Internet database], accessed at http://earthquake.usgs.gov/earthquakes/search/.

Weston Geophysical Corporation, 1979, Evaluation of local seismicity around the Perry Nuclear Power Plant site, Appendix D of Report to the Cleveland Electric Illuminating Co.: Weston Geophysical Corporation, 102 p.

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YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FA COUNTY SOURCE1992 3 26 3 43 15.27 41.870 -80.870 - 2.5 1 F - ASHT JCU/OSN1992 3 28 8 22 44.06 41.900 -80.750 - 2.9 1 F - ASHT JCU/OSN1992 3 31 1 54 52.11 41.913 -80.860 - 2.5 1 F - ASHT JCU/OSN1992 4 7 1 35 22.12 41.883 -80.850 - 2.0 1 - - ASHT JCU1992 7 4 0 0 0.00 41.180 -83.680 - 2.0 1 III - WOOD UTLO1992 7 14 0 0 0.00 41.180 -83.680 - 2.0 1 III - WOOD UTLO1992 10 4 23 30 0.00 41.400 -83.500 - 2.5 3 III - WOOD UTLO1993 10 10 0 0 0.00 41.650 -83.500 - 2.0 1 III - LUCA UTLO1993 10 16 6 30 5.32 41.820 -81.270 - 3.6 1 IV - LAKE GSC1993 11 9 22 2 0.00 41.400 -83.500 - 2.0 1 III - WOOD UTLO1994 4 4 15 14 44.00 40.400 -84.000 - 2.9 1 III - SHEL USGS1994 7 9 22 13 40.60 39.045 -83.294 - 2.5 1 III - PIKE UK1995 1 12 21 25 51.00 40.800 -82.680 - 3.3 1 - - RICH USGS1995 2 19 12 57 6.00 39.120 -83.470 - 3.6 1 V - HIGH USGS1995 2 23 9 32 11.99 41.870 -80.800 - 2.9 1 IV - ASHT GSC/OSN1995 4 9 11 37 29.01 41.870 -80.770 - 2.4 1 NF - ASHT GSC/OSN1995 5 14 20 21 8.60 38.710 -82.602 - 2.5 1 NF - LAWR UK1998 1 27 0 38 30.24 41.870 -81.110 - 3.0 1 NF - LAKE GSC1998 1 30 4 59 18.00 41.910 -81.110 - 2.4 1 NF - LAKE GSC1998 11 25 2 55 7.52 41.020 -82.543 - 3.2 1 III 0.7 HURO GSC1998 12 25 21 22 3.10 41.150 -81.460 - 2.8 1 NF - SUMM GSC1999 9 22 10 2 18.80 41.680 -81.450 - 2.8 1 III - LAKE GSC2000 6 7 6 19 18.00 42.010 -80.780 - 2.0 1 NF - ASHT GSC2000 6 7 6 55 8.42 41.880 -80.710 - 2.4 1 NF - ASHT GSC/OSN2000 8 7 2 2 30.16 41.010 -81.100 10 3.0 1 IV 0.5 PORT OSN2000 10 20 23 26 26.54 41.910 -80.770 - 2.5 1 NF - ASHT GSC/OSN2001 1 20 2 5 7.00 41.880 -80.780 - 2.6 1 III - ASHT OSN2001 1 26 3 3 20.63 41.870 -80.760 2.5 4.5 1 VI 35 ASHT OSN2001 1 26 3 11 30.00 41.870 -80.760 - 2.0 1 F - ASHT OSN2001 1 26 3 45 25.00 41.870 -80.760 - 2.2 1 - - ASHT OSN2001 1 26 5 11 5.00 41.870 -80.760 - 2.0 1 NF - ASHT OSN2001 1 26 5 36 58.00 41.870 -80.760 - 3.2 1 III - ASHT OSN2001 6 3 22 36 46.39 41.870 -80.760 2.5 3.2 1 III - ASHT OSN2001 6 5 8 27 15.00 41.880 -80.760 - 2.2 1 II - ASHT OSN2001 7 26 10 46 51.40 41.010 -82.550 - 2.7 1 III 0.4 HURO OSN2002 4 28 0 7 20.90 41.850 -81.370 5 2.7 1 F - LAKE OSN2002 5 6 22 26 51.53 38.860 -81.890 - 2.8 1 NF - MEIG USGS/OSN2002 8 17 8 26 31.89 41.790 -80.980 - 2.0 1 NF - ASHT OSN2003 2 10 5 34 43.07 41.950 -80.720 - 2.4 1 II - ASHT OSN/GSC2003 5 1 6 26 57.79 41.676 -81.110 - 2.0 1 NF - LAKE GSC/OSN2003 6 30 19 21 17.20 41.800 -81.200 4.6 3.5 1 IV 3.2 LAKE OSN/GSC2003 7 17 0 44 10.00 41.860 -80.760 - 2.5 1 III 0.3 ASHT OSN/USGS2003 7 22 15 54 1.20 41.872 -80.770 2.6 2.1 1 NF - ASHT LCSN2004 1 30 12 10 4.10 40.670 -84.920 - 2.5 1 III 0.4 MERC OSN2004 3 14 5 10 28.00 41.770 -81.240 5 2.4 1 III 0.25 LAKE OSN2004 6 30 4 3 14.58 41.780 -81.070 5 3.3 1 III 1 LAKE OSN2005 2 1 13 1 13.30 41.800 -81.100 5 2.5 1 F - LAKE OSN/GSC2005 2 23 6 12 9.66 41.820 -80.960 5 2.0 1 F - ASHT OSN/GSC2005 3 2 6 53 16.93 41.800 -80.980 5 2.2 1 NF - ASHT OSN/GSC2005 3 13 4 2 4.49 40.680 -84.600 5 2.2 1 F - MERC OSN/GSC2005 11 13 11 2 15.77 41.840 -81.210 6.4 2.2 1 F - LAKE OSN/LCSN2005 12 11 5 20 2.38 41.950 -80.840 9.9 2.0 1 F - ASHT OSN/LDEO2006 1 6 3 2 2.69 41.770 -81.450 5 2.6 1 F - LAKE OSN/GSC2006 1 13 15 32 17.55 41.800 -81.450 7 2.3 1 F - LAKE OSN/LCSN2006 2 10 13 30 42.00 41.750 -81.410 5 2.6 1 F - LAKE OSN/GSC2006 2 27 20 53 20.48 41.920 -80.830 5 2.0 1 NF - ASHT OSN/GSC2006 3 11 12 27 15.16 41.760 -81.390 5 3.0 1 F - LAKE OSN/GSC2006 3 27 17 24 30.00 40.804 -81.413 5 2.2 1 - - LAKE GSC2006 3 27 17 24 30.35 41.750 -81.410 5 2.1 1 NF - LAKE OSN/GSC2006 4 10 5 55 52.49 41.920 -80.820 10 2.0 1 NF - LAKE OSN/LCSN2006 5 12 1 51 11.07 40.740 -84.080 5 2.8 1 III - ALLE OSN2006 5 21 14 15 28.63 41.810 -81.430 5 2.2 1 NF - LAKE OSN/GSC2006 6 20 20 11 18.54 41.840 -81.230 4 3.8 1 F - LAKE OSN2006 6 20 20 57 22.94 41.810 -81.240 5 2.2 1 NF - LAKE OSN2006 6 22 10 9 45.48 41.850 -81.250 5 2.3 1 NF - LAKE GSC2006 6 28 13 18 28.38 41.690 -81.240 5 2.3 1 F - LAKE GSC2006 7 1 5 25 53.19 41.830 -81.250 5 2.1 1 NF - LAKE GSC2006 8 15 6 8 54.90 40.710 -84.110 5 2.5 1 F - ALLE OSN2006 9 14 14 50 52.11 41.790 -81.230 5 2.2 1 NF - LAKE OSN2007 1 22 6 17 10.20 41.830 -81.210 6 2.2 1 NF - LAKE OSN2007 3 12 23 18 16.41 41.280 -81.380 5 3.3 1 F 7.7 PORT OSN2007 4 12 22 3 20.74 41.710 -82.930 5 2.5 1 NF - OTTA OSN2007 4 24 1 9 50.18 41.750 -82.900 5 2.3 1 NF - OTTA OSN2007 8 27 23 26 44.07 41.720 -81.380 5 2.1 1 F - LAKE OSN2007 9 28 8 46 5.81 41.990 -80.600 5 2.7 1 F - ASHT OSN2007 10 16 17 5 1.55 41.760 -81.420 5 2.4 1 NF - LAKE OSN2007 10 17 20 4 9.74 41.750 -81.420 5 3.2 1 III - LAKE OSN2007 10 18 22 23 4.23 41.730 -82.220 5 2.7 1 NF - LORA GSC2008 1 9 1 34 46.70 41.720 -81.430 5 3.1 1 F - LAKE OSN2008 8 14 18 32 16.00 41.850 -81.010 5 2.3 1 F - LAKE OSN2008 9 18 1 4 16.57 41.780 -81.430 5 2.8 1 F 7.2 LAKE OSN2008 9 20 19 16 43.19 41.740 -81.420 5 2.3 1 NF - LAKE OSN2008 9 30 1 6 38.58 40.410 -84.310 5 2.8 1 IV 6.75 SHEL OSN2009 2 14 13 16 27.16 41.840 -81.000 5 2.6 1 NF - ASHT OSN2009 2 23 23 32 27.26 41.750 -81.440 - 2.2 1 NF - LAKE GSC2009 4 24 13 42 46.03 38.810 -82.270 5 3.3 1 IV - GALL NCE2009 10 21 17 59 46.85 41.800 -81.340 5 2.4 1 NF - LAKE OSN/GSC2010 2 4 17 44 21.30 41.620 -81.460 5 2.1 1 II - LAKE OSN2010 2 26 22 13 13.27 41.160 -83.410 5 2.4 1 III - SENE OSN2010 4 25 2 0 36.94 41.970 -81.040 5 2.9 1 III - LAKE OSN2010 5 14 2 27 2.15 41.390 -83.300 5 2.6 1 NF - SAND OSN/GSC2010 5 17 21 29 5.65 41.240 -81.510 5 2.5 1 NF - SUMM OSN2010 6 7 16 22 32.16 41.770 -81.100 - 2.3 1 F - LAKE OSN2010 6 10 16 32 22.31 41.760 -81.430 5 2.5 1 F - LAKE OSN2010 10 24 8 12 44.51 39.430 -81.360 5 2.8 1 III - WASH OSN2011 3 17 10 42 20.22 41.110 -80.680 5 2.1 1 F - MAHO OSN2011 3 17 10 53 9.51 41.110 -80.680 5 2.6 1 III 0.1 MAHO OSN2011 4 26 7 9 46.59 40.860 -83.540 5 2.4 1 III - HANC OSN2011 6 5 15 35 20.20 41.030 -82.080 5 3.0 1 II - MEDI OSN2011 6 15 4 37 57.86 41.810 -81.790 5 2.0 1 NF - CUYA GSC/OSN2011 8 13 15 41 0.77 42.250 -81.020 5 2.1 1 NF - LAKE OSN/GSC2011 8 22 8 0 31.50 41.120 -80.730 5 2.2 1 NF - MAHO OSN/GSC2011 8 25 19 44 20.99 41.100 -80.730 5 2.4 1 NF - MAHO OSN/GSC2011 8 31 9 35 12.41 39.400 -81.270 5 3.0 1 III - WASH OSN2011 8 31 17 36 2.67 39.510 -81.470 5 3.1 1 III - WASH OSN2011 9 2 21 3 26.20 41.120 -80.690 5 2.2 1 II - MAHO OSN2011 9 4 13 21 59.29 39.422 -81.205 5 2.6 1 III - WASH OSN/USGS2011 9 26 1 6 9.82 41.110 -80.690 5 2.6 1 F - MAHO OSN2011 9 30 0 52 37.58 41.110 -80.690 5 2.7 1 IV 1 MAHO OSN2011 10 20 22 41 9.54 41.110 -80.680 5 2.3 1 F - MAHO OSN2011 11 25 6 47 0.00 41.100 -80.690 5 2.2 1 NF - MAHO OSN/USGS2011 12 24 6 24 57.38 41.119 -80.694 3.55 2.7 1 III - MAHO OSN/USGS2011 12 31 20 5 0.01 41.118 -80.693 3.68 4.0 1 V - MAHO OSN/USGS2012 1 13 22 29 33.45 41.110 -80.690 5 2.1 1 NF - MAHO OSN2012 5 29 11 52 54.17 39.380 -81.350 2 2.1 1 F - WASH OSN2012 9 7 21 56 35.10 41.864 -83.076 5.1 2.5 1 - - LUCA USGS2012 9 18 21 5 19.58 39.384 -81.352 4 2.1 1 NF - WASH OSN2012 12 1 7 32 2.00 39.041 -82.143 - 2.1 1 NF - MEIG OSN2013 3 8 22 32 20.72 41.705 -81.468 5 2.7 1 F - LAKE OSN2013 3 17 22 49 26.07 41.658 -80.885 5 2.2 1 NF - ASHT OSN2013 3 27 9 10 50.08 38.643 -82.178 5 2.5 1 NF - GALL OSN/USGS2013 7 1 7 48 43.31 41.793 -81.292 5 3.2 1 F - LAKE OSN2013 10 6 19 37 2.93 41.850 -81.008 5 2.4 1 F - LAKE OSN2013 10 21 11 14 15.49 39.668 -83.073 20 2.0 1 NF - PICK OSN2013 11 17 1 35 50.00 42.217 -81.191 5 2.5 1 - - LAKE GSC2013 11 20 17 59 39.82 39.445 -82.205 8 3.5 1 III 36.8 ATHE OSN2014 1 20 6 50 18.67 41.408 -81.906 13 2.1 1 NF - CUYA OSN2014 1 28 8 15 54.48 41.887 -81.701 5 2.0 1 NF - CUYA OSN2014 3 5 3 5 18.00 41.033 -80.543 5 2.3 1 NF - MAHO OSN2014 3 10 6 26 45.00 41.010 -80.543 5 3.0 1 F - MAHO OSN2014 3 10 6 42 44.00 41.009 -80.555 5 2.4 1 F - MAHO OSN2014 3 10 15 3 47.00 41.101 -80.530 5 2.2 1 NF - MAHO OSN2014 3 10 15 44 6.00 41.009 -80.532 5 2.6 1 F - MAHO OSN2014 3 11 7 1 0.00 41.003 -80.534 5 2.1 1 NF - MAHO OSN2014 4 8 16 2 28.30 41.811 -81.004 5 2.2 1 F - LAKE OSN

YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FASTATE /

PROVINCE SOURCE1817 9 5 0 0 38.500 -84.500 - 3.1 3 IV - KY NCE1824 7 15 16 20 39.700 -80.500 - 4.1 2 IV 169 WV NCE1839 9 5 0 0 38.600 -83.800 - 3.1 3 IV - KY NCE1857 2 27 20 30 42.220 -81.050 - 3.9 2 V 29.7 ONT NCE1869 2 20 0 0 38.100 -84.500 - 3.4 3 V - KY NCE1876 2 20 8 0 41.910 -83.480 - 3.3 3 III - MI NCE1877 8 17 16 50 42.300 -83.300 - 3.1 2 V 0.5 MI NCE1883 5 23 4 30 38.400 -82.600 - 3.1 3 IV - KY NCE1890 12 15 13 0 41.410 -80.390 - 2.9 3 II - PA NCE1894 11 24 4 0 39.270 -81.560 - 3.8 3 IV - WV NCE1895 8 19 15 0 38.530 -83.750 - 3.2 2 III 0.5 KY NCE1897 6 17 0 0 38.050 -84.500 - 2.9 3 II - KY NCE1902 3 5 8 0 38.140 -83.760 - 3.8 3 IV - KY NCE1909 10 22 0 0 38.900 -84.500 - 2.5 3 II - KY NCE1933 5 28 15 10 38.600 -83.700 - 3.4 2 V 1.8 KY NCE1936 8 26 8 55 41.400 -80.400 - 2.9 3 III - PA NCE1947 8 10 2 46 41.3 41.930 -85.000 - 4.5 2 VI 180 MI NCE1970 8 11 6 14 25.5 38.230 -82.050 10 3.2 2 IV 1.6 WV NCE1974 6 5 0 16 40.2 38.480 -84.750 10 3.2 1 VI - KY NCE1974 10 20 15 13 55.6 39.060 -81.610 4 3.8 2 V 20 WV NCE1976 2 2 21 14 2.3 41.880 -83.730 5 3.4 1 III 1.6 MI NCE1979 11 9 21 29 59.8 38.490 -82.810 - 3.6 1 V 9 KY NCE1980 7 27 18 52 21.4 38.190 -83.890 16 5.2 1 VII 667 KY USGS1980 7 31 9 27 2.3 38.190 -83.930 19 2.5 1 IV - KY NCE1980 8 20 9 34 53.4 41.990 -82.990 - 3.2 1 - 18 ONT NCE1980 8 25 11 41 38.3 38.190 -83.790 13 2.5 1 IV 0.7 KY NCE1980 12 30 3 7 8.1 38.200 -83.910 11 3.1 2 III 0.7 KY NCE1983 8 17 14 3 15 38.470 -82.770 10 3.5 1 V - KY NCE1985 4 14 11 39 51.3 41.400 -80.370 - 2.0 1 - - PA ASN1985 4 14 11 39 54 41.583 -80.402 18 3.2 0 - - PA GSC1985 7 11 10 13 20 42.360 -80.750 - 2.6 1 - - ONT GSC1988 9 7 2 28 9.5 38.143 -83.878 10 4.6 1 VI 103 KY USGS1989 7 15 0 3 2.6 38.606 -83.569 - 3.1 1 V - KY USGS1990 4 17 10 27 34.7 40.460 -84.852 - 3.0 1 IV - IN USGS1990 9 8 0 3 57.4 38.061 -83.731 - 3.3 1 V - KY USGS1991 6 28 18 34 51.9 38.276 -81.668 - 3.2 1 - - WV USGS1998 3 14 7 24 55 42.130 -82.480 - 2.6 1 - - ONT GSC1998 9 25 19 52 52.07 41.495 -80.388 - 5.2 1 VI - PA USGS1998 10 9 8 41 50 41.677 -80.375 18 2.1 0 - - PA GSC

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YEAR MO DA HR MN SEC LAT N LON W DP MAG MT MMI FASTATE /

PROVINCE SOURCE1998 11 5 3 16 53 42.270 -81.580 - 2.3 1 NF - ONT GSC1998 11 7 2 17 12 41.566 -80.315 5 2.3 0 - - PA GSC1999 1 24 22 46 19 42.260 -82.330 - 2.4 1 F - ONT GSC1999 1 27 1 38 7 42.330 -82.300 - 2.6 1 F - ONT GSC1999 1 27 1 57 19 42.310 -82.310 - 2.5 1 F - ONT GSC1999 6 3 4 2 32 42.280 -82.230 - 2.3 1 - - ONT GSC1999 10 30 8 2 48 42.060 -80.400 - 2.5 1 - - PA GSC2001 10 23 1 33 18.8 42.340 -84.760 - 2.9 1 III - MI OSN/GSC2004 7 15 4 30 44 42.029 -82.365 18 2.2 0 - - ONT GSC2004 9 23 19 10 11 38.317 -83.530 11 2.8 3 - - KY USGS2005 2 10 4 39 15 41.679 -80.319 5 2.0 0 - - PA GSC2005 3 1 20 44 11 42.136 -82.573 5 2.4 0 - - ONT GSC2005 3 2 2 50 4 42.234 -81.160 5 2.0 0 - - ONT GSC2005 4 20 21 36 9 41.616 -80.409 5 2.2 0 - - PA GSC2005 8 13 23 43 28 42.068 -80.500 5 2.4 0 - - PA GSC2005 9 5 20 2 35.79 38.190 -83.930 12.8 2.5 0 - - KY USGS2006 5 7 4 32 49 42.105 -82.450 5 2.2 0 - - ONT GSC2006 10 11 3 51 22 42.093 -83.144 5 2.3 0 - - ONT GSC2007 1 17 14 50 48 42.330 -81.817 5 2.1 0 - - ONT GSC2008 7 21 1 41 30 41.473 -80.367 5 2.3 0 - - PA GSC2009 3 7 9 54 10 42.099 -82.477 18 2.2 0 - - ONT GSC2009 3 20 17 11 11 42.019 -83.117 5 2.1 0 - - ONT GSC2009 3 26 15 51 18 42.053 -83.174 5 2.1 0 - - ONT GSC2010 3 8 10 10 38.56 42.163 -83.070 18 2.5 0 - - ONT GSC/USGS2010 9 13 15 8 45 38.165 -82.022 6 2.3 1 NF - WV USGS2010 12 10 21 26 32.79 41.514 -80.322 5 2.2 0 NF - PA GSC/USGS2011 2 23 14 21 32.42 42.157 -82.430 5 3.0 0 - - ONT GSC/USGS2011 2 24 10 13 51 42.138 -82.373 5 2.7 0 - - ONT GSC2012 3 16 15 5 53.57 38.234 -81.748 5 2.6 0 - - WV USGS2013 2 17 4 12 55 42.018 -82.224 5 2.5 0 NF - ONT GSC2013 7 18 21 44 38.83 38.712 -83.957 8 2.4 1 NF - KY UK/OSN2013 7 23 15 0 40.42 38.703 -83.940 5 2.7 1 F - KY UK/OSN2013 10 11 2 25 40.8 38.506 -82.798 5.7 2.2 0 - - KY USGS2013 11 2 13 20 27.8 38.571 -83.775 7.8 2.1 0 - - KY USGS2013 11 22 19 42 11.5 38.109 -83.519 12.3 2.1 0 - - KY USGS2013 12 23 10 58 50 38.145 -83.865 10.3 2.3 0 - - KY USGS2014 2 9 22 34 4.98 41.482 -80.364 5 2.2 0 NF - PA USGS2014 6 6 22 15 40 38.644 -81.586 29 2.6 1 NF - WV USGS

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