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Free keywords:
automatic event detection, real-time processing, seismic monitoring,seismic stations, sensor
Abstract:
Starting with 2002 the National
Institute for Earth Physics (
NIEP) has developed its
real-time digital seismic networ
k. This network consists of 39
broad band and short period stations
and two seismic arrays. SeedLink and Antelope
TM
program packages are used for real-time (RT) data
acquisition and exchange. The present network is going to be ex
panded in the near future. Thus, in
2008 NIEP will install 40 additional broad band stations in Rom
anian territory and 40 strong motions
stations in Bucharest, so that at the end of the year NIEP will
have 119 digital broad-band seismic
stations and short pe
riod in real time.
The communication from digital
seismic stations to the Nationa
l Data Center in Bucharest is
achieved by 5 providers (GPRS,
VPN, satellite communication, ra
dio lease line and
internet), which
assure the back-up communication lines.
The power energy for all the se
ismic stations and the communic
ation systems is supplied by
batteries which offer
24 hours of autonomy.
The processing centre runs BRTT’s Antelope
TM
4.9 data acquisition and processing software
on two workstations for real-time processing and post processin
g. The Antelope Real-Time System is
also providing automatic event detection, arrival picking, even
t location and magnitude calculation. It
provides graphical display and
reporting within near-real-time
after a local or regional event occurred.
The Romanian Seismic Network is permanently exchanging real–tim
e waveform data with
IRIS, ORFEUS and different Eur
opean countries through internet.
In Romania, the magnitude and location of an earthquake are now
available within a few
minutes after the earthquake occurred. One of the greatest chal
lenges in the near future is to provide
shaking intensity maps and other ground motion parameters, with
in 5 minutes post-event, on the
Internet and GIS-based format in
order to improve emergency res
ponse, public information,
preparedness and hazard mitigation.
