the friuli venezia giulia accelerometric network raf...
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The Friuli Venezia Giulia accelerometric network RAF and its integration with the RAN.Giovanni Costa
Seismologia Research and Monitoring group, Department of Mathematics and Geosciences, University of Trieste, Italy;
Seismological Researcher
and Monitoring group
Giovanni Costa, Piero Falconer, Lorenzo Furlan, Antonella Gallo, Lara Tiberi, Blaž Vičič, Giuliana Zoppé
1993 - 2000 2000 -
2011 -
1976 – 2016 Simposio “Monitoraggio sismico e accelerometrico per la Protezione Civile: stato dell’arte e nuove strategie a 40 anni dal terremoto del Friuli / CRS Udine 19 aprile 2016
Autenticazione della SIM associazione IP statico
Private APN
Server Radius
Telecom
DPC
CDN
SIM SIM SIM
Registrazione della SIM accesso alla rete GPRS tramite APN dedicato
Stazioni
trasmissione dati GPRS
Passo Pura
GemonaGorizia
Monte Pala
X
Stazione CARC - Borgo Teresiano - Trieste
(Cucchi et al., 2013)
0 2 4 6 8
Frequency Hz
0
4
8
12
Resp
onse
spect
ra r
atio
CARC station HVSR
North components
30/08/2003 Friuli Ml 3.8
14/09/2003 Appennino Ml 5.0
23/05/2004 Bosnia Mb 4.9
12/07/2004 Bovec Mlb 5.1
14/09/2004 Rijeka Mb 4.5
24/11/2004 Garda Mb 5.3
25/11/2004 Adriatico Mb 5.2
(Fitzko et al., 2007)
0 2 4 6 8
Frequency Hz
0
4
8
12
Fou
rier
spect
ra r
atio
CARC noise
North/Vertical
East/Vertical
Stazione CARC - Borgo Teresiano - Trieste
(Fitzko et al., 2007)
0 2 4 6 8
Frequency Hz
0
4
8
12
Fou
rier
spect
ra r
atio
CARC noise
North/Vertical
East/Vertical
0 2 4 6 8
Frequency Hz
0
4
8
12
Fou
rier
spect
ra r
atio
CARC noise meas. upper floor vs. basement
NS
EW
Z
Stazione CARC - Borgo Teresiano - Trieste
(Fitzko et al., 2007)
GESC
GEPF
GETM
Gemona fan
Evento Bovec – Krn 1998 (Ml 5.7)
spettri di risposta (damping 5%)
Evento Bovec – Krn 2004 (Ml 5.2) spettri di risposta
(damping 5%)
GESCGEPF
GETM GEDE
Gemona del Friuli
functionality
functionality
Daily report
orb
Daily
history
Funzionalita_RF20160514.xml
0
10
20
30
40
50
60
70
80
90
100
110% Funzionalità
RAN
RAF
9/ 7/ 2015 – 17/ 4/2016
CE3RNCentral and Eastern European Earthquake Research Network
RAF
BOVEC 1998
BOVEC 2004
Živčić, (Susans, 2007)
THE INTERREG IIIA PROJECTs
“TRANS-NATIONAL
SEISMOLOGICAL NETWORK
IN THE SOUTH-EASTERN ALPS”
Trans-National Seismological Networks in
the South-Eastern Alps-
CE3RN
FASTLINK
Trans-National Seismological
DATABASE
2003-201613:04:15.0002004194
13:04:30.0002004194
13:04:45.0002004194
13:05:00.0002004194
13:05:15.0002004194
13:05:30.0002004194
13:05:45.0002004194
ARSA HHZ
BILJ BHZ
BOJS HHZ
CADS HHZ
CEY HHZ
COLI SHZ
CRES HHZDOBS HHZ
DRE SHZ
GCIS HHZGOLS HHZ
GORS HHZ
GROS HHZ
KBA HHZKNDS HHZ
KOGS HHZ
LEGS HHZLISS HHZ
LJU HHZ
LSR SHZ
NOME HHZ
OBKA BLZ
PDKS HHZPERS HHZ
ROBS HHZ
TRI HHZ
VINO BHZ
VISS HHZ
ZAMG
OGS
DST/OGS
ARSO - provisional stations
not available at the time of the earthquake
CE3RNCentral and Eastern European Earthquake Research Network
CE3RNCentral and Eastern European Earthquake Research Network
200320142016Southeastern Alps Transfrontalier Network“Reti sismologiche senza frontiere nelle Alpi sud-orientali“ and “FASTLINK”
Moratto et al., 2009
Misfit
Stucchi et al. (2007) 264.01
N
II
Misfit
N
i
OBSCOM
N=137
Moratto et al., 2009
Friuli Venezia Giulia
Accelerometric Network – RAF
RAN - Syscom
RAN - Kinemetrics
RAF
ISNet
RAN - CESI
RAN RAF
Real-time system
A fast seismic data analysis is essential to provide useful information to
Authorities which make decisions immediately after a strong earthquake
occurrence. During a strong earthquake, the modern accelerometers are the
only instruments which can provide near source high-quality data that are
important both for scientific (e.g. a better understanding of the source
characteristic) and for civil protection purposes (e.g. a rapid provision of
information on ground motion parameters to Authorities).
Automatic and fast techniques have been developed by the University of Trieste
for the automatic real-time strong motion data analysis. These techniques have
tested at University of Trieste using the VBB and strong-motion data of the
Central and Eastern European Earthquake Research Network (CE3RN). Starting
from 2012 this technique has been installed and optimized in the data acquisition
centre of the National Department of Civil Protection of Italy (DPC) in Rome to
process the near real-time data of the National Accelerometric Network (RAN).
Fast strong motion data analysis
Fast strong motion data analysis
The developed procedure estimates in real time the seismic moment, moment
magnitude and corner frequency of events recorded by a network comprising
broad-band, velocimeter and accelerometer sensors.
Engineering and damage parameters
PGA, PGV, PGD, PSA, duration, Arias, Housner, RMSA, intensity of zero
crossing, Saragoni index, damage factor, etc.
are also obtained in near real-time, archived and sent by e-mail to the Civil
Defence Authorities.
The procedure produces reliable results even for small-magnitude events (≈ 2).
originstamagwfmeas
wfmax
DSTalevDSTalertplacessnetstaorigin
Alert (python)
alertmeas
Alert
green: new tables
DmG.sms
dbmw (fortran90)
Seismic Moment, f0, stress drop, Mw computation
Response spectra and Ground Motion Parameters
Signal pre-processing
dbmw (fortran90)
Signal pre-processing
Select N, E, Zcomponent
wfdiscorigin
netmag
Select originMl > magmin
dismin<dist<dismax Reject
Extract noise and S-waves windows
arrivalassoc
Apply, rmean, detrend, d2,instrumental
response
Apply bandpassButterworth
filter
compute instrument response
calibrationSite
Sensorinstrument
F2 > f1F1 < fmin, f2 > fmax
compute displacement, velocity, acceleration
waveforms
compute displacement, velocity, acceleration
Fourier spectra
Define low- high- pass corner frequencies
(f1, f2)
dbmw (fortran90)
Signal pre-processing
Select N, E, Zcomponent
wfdiscorigin
netmag
Select originMl > magmin
dismin<dist<dismax Reject
Extract noise and S-waves windows
arrivalassoc
Apply, rmean, detrend, d2,instrumental
response
Apply bandpassButterworth
filter
compute instrument response
calibrationSite
Sensorinstrument
F2 > f1F1 < fmin, f2 > fmax
compute displacement, velocity, acceleration
waveforms
compute displacement, velocity, acceleration
Fourier spectra
Define low- high- pass corner frequencies
(f1, f2)
f1
f2SNR > 3
dbmw (fortran90)
compute transversal component
Seismic Moment, f0, stress drop, Mw computation
Compute Fourierspectrum
Correct spectra for geometrical spreading and anelastic
attenuation
Estimate velocity and displacement spectra at the
source
Determine the seismic moment, Mw, f0, stress drop, equivalent
radius
stamwnetmwnetmag
ANDREWS METHOD (1986)
Brune source model
1.180)( ffQ (Consoli and Rovelli, 1981)
(Rmax =70km)
)()()()( RGfEfDfA
12
0
3
0 14
)(
f
f
k
MfD
)(
)(fQ
fT
efE
RRG
1)(
kM 3
0 4
KANAMORI (1979) 1.6)log(3
20 MMW
dffVSV
f
f
sup
inf
22
dffDSD
f
f
sup
inf
22
2/12/32 224 SVSD
222/10 SVSDf
Gallo et al., 2014
Gallo et al., 2014
SEISMIC MOMENT AND MOMENT MAGNITUDE COMPUTATION
dbmw (fortran90)
compute response spectra (2, 5, 10, 20 %)
Compute PGA, PGV, PGD, PSA03, PGA10,
PGA30, duration
Compute RMSA, Intensity of zero crossing, Saragoni index, damage
factor
wfparamwfdamage
Response spectra and Ground Motion Parameters
Shake Maps
generation
new dbmw (C)
Select N, E, Zcomponents From “chan”
Fortran90 C
orb2wf orb2wf X
Rotate components to N and E
Energy computation
originsite
GeositeSpetparwfparam
wfdamagenetmw SPT (python)
SPT
SPTmap.gmt
green: new tables
future development: python
Period (s)
PG
A (
cm/s
2)
Response spectrum
Smoothed spectrum
Design spectrum
siteGeositeNorSpectra
NorSpectra (python) TR=30 R=30 TR=50 TR=72 TR=101 TR=140 TR=201 TR=475 TR=975 TR=2475 ID LON LAT ag Fo TC * ag Fo TC * ag Fo TC * ag Fo TC * ag Fo TC * ag Fo TC * ag Fo TC * ag Fo TC * ag Fo TC * 13111 6.5448 45.134 0.263 2.50 0.18 0.340 2.51 0.21 0.394 2.55 0.22 0.469 2.49 0.24 0.545 2.50 0.24 0.640 2.49 0.25 0.943 2.4 4 0.27 1.267 2.42 0.27 1.767 2.43 0.29 13333 6.5506 45.085 0.264 2.49 0.18 0.341 2.51 0.21 0.395 2.55 0.22 0.469 2.49 0.24 0.543 2.50 0.24 0.636 2.50 0.25 0.935 2.4 4 0.27 1.254 2.42 0.28 1.751 2.44 0.29 13555 6.5564 45.035 0.264 2.50 0.18 0.340 2.51 0.20 0.393 2.55 0.22 0.466 2.50 0.24 0.540 2.51 0.24 0.630 2.51 0.25 0.923 2.45 0.27 1.237 2.43 0.28 1.729 2.44 0.29 13777 6.5621 44.985 0.263 2.50 0.18 0.338 2.52 0.20 0.391 2.55 0.22 0.462 2.51 0.24 0.535 2.51 0.24 0.621 2.52 0.25 0.909 2.46 0.27 1.217 2.44 0.28 1.703 2.44 0.29 12890 6.6096 45.188 0.284 2.46 0.19 0.364 2.51 0.21 0.431 2.50 0.22 0.509 2.48 0.24 0.585 2.50 0.24 0.695 2.47 0.25 1.006 2.4 4 0.27 1.338 2.43 0.27 1.844 2.44 0.29 13112 6.6153 45.139 0.286 2.46 0.19 0.366 2.51 0.21 0.433 2.50 0.22 0.511 2.48 0.24 0.586 2.50 0.25 0.695 2.47 0.25 1.005 2.4 5 0.27 1.336 2.43 0.27 1.841 2.44 0.29 13334 6.621 45.089 0.288 2.46 0.19 0.367 2.51 0.21 0.434 2.50 0.22 0.511 2.49 0.24 0.586 2.51 0.25 0.694 2.48 0.25 1.001 2.45 0.27 1.332 2.43 0.27 1.835 2.44 0.29 13556 6.6268 45.039 0.288 2.46 0.19 0.367 2.51 0.21 0.433 2.51 0.22 0.510 2.49 0.24 0.584 2.51 0.25 0.691 2.48 0.25 0.996 2.4 5 0.27 1.325 2.44 0.28 1.828 2.44 0.29 13778 6.6325 44.989 0.288 2.46 0.19 0.366 2.52 0.21 0.430 2.51 0.22 0.507 2.50 0.24 0.580 2.51 0.25 0.686 2.49 0.25 0.989 2.4 5 0.27 1.318 2.44 0.28 1.819 2.44 0.29 14000 6.6383 44.939 0.286 2.47 0.19 0.363 2.52 0.21 0.426 2.52 0.22 0.502 2.50 0.24 0.576 2.52 0.24 0.679 2.49 0.25 0.981 2.4 5 0.27 1.307 2.44 0.28 1.807 2.44 0.29 14222 6.6439 44.889 0.284 2.47 0.19 0.360 2.53 0.21 0.421 2.53 0.22 0.497 2.50 0.24 0.570 2.52 0.24 0.671 2.50 0.25 0.970 2.4 5 0.27 1.294 2.44 0.28 1.792 2.44 0.29 12891 6.6803 45.192 0.306 2.43 0.20 0.389 2.50 0.21 0.467 2.47 0.23 0.544 2.49 0.23 0.625 2.50 0.25 0.736 2.47 0.26 1.049 2.4 6 0.27 1.374 2.46 0.28 1.875 2.46 0.29 10228 6.6826 45.794 0.283 2.42 0.20 0.364 2.46 0.22 0.430 2.46 0.24 0.505 2.44 0.25 0.577 2.48 0.26 0.679 2.48 0.26 0.992 2.4 3 0.27 1.335 2.38 0.28 1.924 2.30 0.30 13113 6.686 45.143 0.309 2.43 0.20 0.391 2.51 0.21 0.470 2.47 0.23 0.546 2.49 0.23 0.627 2.50 0.25 0.737 2.48 0.26 1.048 2.46 0.27 1.373 2.46 0.28 1.873 2.46 0.29
SpetPar
Period (s)
PG
A (
cm/s
2)
Response spectra
Smoothed spectra
Design spectra
Tolmezzo
Ml 0.8
Ml 1.3
Ml 2.0
Tolmezzo
Thank you for your attention.
Seismological Researcher
and Monitoring group
http://rtweb.units.it.
Giovanni Costa, Piero Falconer, Lorenzo Furlan, Antonella Gallo, Lara Tiberi, Blaž Vičič, Giuliana Zoppé