status of lcsn: lcsn operators workshop, oct., 2007

Status of LCSN: LCSN Operators Workshop, Oct., 2007

Won-Young Kim (PI and director of network)Mitchell Gold (network managing staff); John Contino (Senior technician)Art Lerner-Lam (ANSS-NE Regional co-Coordinator); John Armbruster (Outreach/Research)Charles Scharnberger (LCSN Advisory Committee) + 35 participants (high schools, colleges,)

Long-term Strategic Goals of LCSN:

1) seismic monitoring for evaluation of hazards associated with earthquakes in the Northeastern United States,

2) accurate determination of earthquake parameters and rapid reporting for development of the Advanced National Seismic System (ANSS-NE),

3) provide high-quality data and information products for emergency management agencies, K-12 education, public outreach, as well as advanced

seismic research.“Seismic monitoring is the foundation upon which all earthquake mitigation practices are built” (USGS Circular 1188, Advanced National Seismic System).

LCSN (Lamont-Doherty Cooperative Seismographic Network)


Short-term Strategic Goals: (FY06-07, part of FY08)

To take advantage of ANSS processing software such as, ShakeMap, CISN software development, we need to improve hardware – station coverage & data quality)

• Improve seismic station coverage by deploying new BB stations1. Entire Northeast, BB station spacing ~100 km2. High risk area, Greater NYC, Boston, Philadelphia; spacing < 50 km

• Improve waveform data quality by upgrading existing stations to BB

• Improve station uptime by deploying backup systems & comm. links

• BB stations -- 100 samples/s continuous recording (cf. 40 sps)

• Improve quality and timeliness of data products: Accurate source parameters, ShakeMaps, event waveform data, etc.


Results during Oct. 2006-Sept. 2007:• Six new BB stations deployed (ODNJ, NPNY, PRIN, MSNJ, WCNY,

MMNY [Mount Morris Dam, US Army Corps of Engineers])• Recited two BB stations (LUPA, CUNY- Queens College, Long Island)• Seismic event waveform database set up on LCSN web site• Aftershock monitoring for 10/03/2006, Mw 4.0 Bar Harbor, Maine

earthquake with Weston Obs., Acadia National Park, NEIC/USGS (Oct. 2006-Mar. 2007)

• Initiated research projects among network participants as E&O program- Map the Moho under your station (RF), how quiet your station is?- SAC software on PC running Linux from LLNL/IRIS

Near future in Q4 of FY07 (Oct. 2007–Jan. 2008) activities: • LCSN/ANSS Display for E&O at high schools, colleges, visitor centers,

museums (CISN display on touchscreen monitor) derived AED-IRIS• NYC ground motion study with Art Frankel et al. (Nov. 2007)/USGS

SPAC (Spatial Autocorrelation) method to obtain phase-velocity dispersion curve from microtremor measurements using an array of stations (triangular array)


LCSN monitors earthquakes in New York, New Jersey, Pennsylvania, Delaware, Maryland, DC, and western Vermont.

As of Sept. 2007, a total of 24 broadband seismographic stations of the LCSN are acquiring seismic data through partnership with ~35 organisations.

Data acquisition is mainly through the Internet,

~20 short-period stations will retire on Dec. 1, 2007.


Improved BB station coverage in the Greater New York City region.

35 years old short-period “legacy” seismographic stations can retire on Dec. 1, 2007.

LCSN Advisory Committee

News Letters

Education & Outreach


Mount Morris Dam, New York, US Army Corps of Engineers


WCNY (West Carthage, NY), Carthage Central High School near Fort Drum, NY

Partners: LCSN Operators Workshop, Oct., 2007

LCSN (Lamont-Doherty Cooperative Seismographic Network) is unusual in using a variety of station operators (college & university faculty, secondary school teachers, museums, etc.) to engage a wide variety of audiences and to reach out to large numbers of the general public. It also provides professional development and improved awareness among station operators who are not professional seismologists. About half of the broadband station operators and stations belong to each participating organization. Hence, a large portion of the operation and maintenance cost are born by the participating organizations.

A complete list of ~35 partners are listed below. The LCSN relies upon their support in station maintenance and operation in the region.

The organizations who operate LCSN stations consist of 3 secondary schools, 3 environmental research and education centers, 3 state geological surveys, two museums dedicated to Earth system history, 2 public place (Central Park, NYC & Howe Caverns), 2 two-year colleges, and 15 four-year universities.

Partners of LCSN are (ordered by station code):

Adirondack Community College, SUNY (ACCN) Allegheny College, PA (ALLY)William Annin Middle School, NJ (BRNJ)Black Rock Forest Consortium, Cornwall, NY (BRNY)Central Park Conservancy, NYC (CPNY)Carthage Central High School, NY (CTNY, WCNY)Queens College, CUNY (CUNY)

Partners: LCSN Operators Workshop, Oct., 2007

Delaware Geological Survey, MD (DGS subnet) Franklin and Marshall College, PA (FMPA) Fordham University, the Bronx (FOR) Miner Agricultural Research Institute (FRNY, PNZ)Plattsburgh State, SUNY (FRNY) Geneseo College, SUNY (GENY – Closed for relocation) University of Vermont, Burlington (HBVT) Howe Caverns, Cobleskill, New York (HCNY), SUNY Cobleskill (HCNY)Lehigh University, PA (LUPA) Middlebury College, VT (MDV, MIV) POLARIS Consortium, Canada (MEDO) US Army Corps of Engineers, Buffalo District (MMNY)Montclair State University, NJ (MSNJ)Nature Centre, Passaic County Parks Department, NJ (MSNJ)College of Environmental Science and Forestry, Syracuse, SUNY (NCB) Mohonk Preserve, NY (NPNY), SUNY – New Paltz, NY ( NPNY)Sterling Hill Mining Museum (ODNJ)Princeton Academy of the Sacred Heart (PRIN), Princeton University, NJ (PRIN)Paleontological Research Institution, Museum of the Earth, Ithaca, NY (PRNY)Cornell Univ., Ithaca, New York (PRNY)Potsdam University, SUNY (PTN)Maryland Geological Survey, MD (SDMD) University of Connecticut, CT (UCCT) Westchester Community College, SUNY (WCCN) Department Environmental Protection, State of Connecticut (LSCT- closed for relocation)

Performance: LCSN Operators Workshop, Oct., 2007

Quack (Quality Analysis Control Kit): a web footed interface developed by USGS/IRIS.

For all data submitted to IRIS-DMC with proper metadata (instrument response).


“Ambient noise and site response”: ES-SSA, Oct. 2006 by the partners


Ambient noise analysis to evaluate quality of broadband seismographic stations. Stations equipped by sensors with T0=100-120sec.


Ambient noise analysis to evaluate quality of broadband seismographic stations. Stations equipped by sensors with T0=30sec (CMG-3ESP).


Ambient noise analysis to evaluate quality of broadband seismographic stations. Stations equipped by sensors with T0=20-30sec (CMG-40T).

Operation: LCSN Operators Workshop, Oct., 2007

Station down times or data dropoffs. Blank area show no data recovery or station down. Large blanks at CTNY, LUPA are due to station relocation. LUPA (BHZ), NPNY, ODNJ, WCNY are new stations.


Broadband station uptime and data recovery percentage during 2007. Target is over 90% uptime and data recovery rate across the network . PTN and LUPA improved during the summer of 2007.

AC

CN

ALLY

BR

NJ

BR

NY

CP

NY

CT

NY

CU

NY

FM

PA

FO

R

FR

NY

HC

NY

LUP

A

MS

NJ

MV

L

NC

B

NP

NY

OD

NJ

PA

L

PR

NY

PT

N

SD

MD

UC

CT

WC

NY

0

20

40

60

80

100

120

Data Acquisition -- Broadband 2007

Recovery


LCSN Station coverage for 2007---------------------------------------------------------------------------------------------------------------------Sta Chan Nseg Start date End date Recovery Uptime-------- ------- -------- ------------- -------------- ------------- ----------ACCN BHZ 508 2007-01-01 2007-10-01 94.03% 94.27%ALLY BHZ 23593 2007-01-01 2007-10-01 97.27% 97.28%BRNJ BHZ 5460 2007-01-01 2007-09-30 90.86% 90.86%BRNY HHZ 426 2007-01-01 2007-09-30 97.61% 97.61%CPNY BHZ 14028 2007-01-01 2007-09-30 99.35% 99.35%CTNY BHZ 244 2007-01-05 2007-06-27 99.71% 63.10%CUNY BHZ 699 2007-01-01 2007-09-30 94.42% 94.42%FMPA BHZ 405 2007-01-01 2007-10-01 94.21% 94.27%FOR BHZ 305 2007-01-01 2007-10-01 99.50% 99.86%FRNY BHZ 325 2007-01-01 2007-09-30 99.43% 99.43%HCNY BHZ 301 2007-01-01 2007-09-30 99.66% 99.66%LUPA BHZ 11 2007-09-21 2007-09-30 100.00% 3.36%

HHZ 1881 2007-01-01 2007-09-21 47.90% 46.29%MSNJ HHZ 4 2007-09-28 2007-09-30 99.24% 0.83%MVL BHZ 1084 2007-01-01 2007-10-01 93.02% 93.36%NCB BHZ 446 2007-01-01 2007-09-30 89.49% 89.49%NPNY HHZ 33 2007-09-07 2007-09-30 99.60% 8.40%ODNJ HHZ 133 2007-06-23 2007-09-30 91.61% 33.54%PAL BHZ 282 2007-01-01 2007-09-30 99.76% 99.76%PRNY BHZ 6931 2007-01-01 2007-09-30 99.59% 99.59%PTN BHZ 2034 2007-01-01 2007-10-01 62.55% 62.56%SDMD BHZ 411 2007-01-01 2007-09-30 96.88% 96.88%UCCT BHZ 2374 2007-01-01 2007-10-01 95.30% 95.65%WCNY HHZ 1171 2007-06-27 2007-09-30 93.83% 32.78%----------------------------------------------------------------------------------------------------------------------

Aftershock monitoring: LCSN Operators Workshop, Oct., 2007

Mw 4 mainshock occurred on 3 Oct. 2006, near Bar Harbor, in the Acadia National Park in Maine.

Folks at Weston Obs., Maine Geological Survey, National Park, NEIC/USGS collaborated.

ANSS Performance Standard & Products: LCSN Operators Workshop, Oct., 2007

LCSN is Working Hard to Meet the ANSS Performance Standard;

Target is Mod-High Hazard Areas,

Accurate source parameters: location, magnitude – 4 minutes(reviewed 10 minutes)

Focal mechanism & seismic moment – 15 minutes(reviewed 30 minutes)

Focal depth – 10 minutes ShakeMaps – 10 minutes (work in progress)

Earthquake Information Product;

Earthquake catalogs and phase dataRegional CMT

Data exchange and archive: met the standard.

ANSS Performance Standard & Products: LCSN Operators Workshop, Oct., 2007

ANSS National Implementation Committee (NIC) Meeting, Oct. 4-5, 2007, Reno, Nevada.

- LCSN is in Tier 1 among the regional networks - New ANSS Software Development1. PAGER (Prompt Assessment of Global Earthquake Response)2. ShakeMap (use intensity felt reports, fault trace, Vs based on topography)3. CISN (California Integrated Seismic Network) processing software 4. EIDS (Earthquake Information Distribution System)

- Crandall Cyn. Mine collapse, Utah- FY2008 budget: President’s budget (no new funding); House

Appropriation Bill (Approx. $1M increase to ANSS expected).- Regional Network Software Upgrade: LCSN & CERI 2008- Regional Network Operators Workshop, early 2008

status of lcsn: lcsn operators workshop, oct., 2007

Documents

lcsn operators workshop

seismic data

lcsn monitors earthquakes

seismic monitoring

bb stations lupa

improved bb station

station uptime

existing stations