DBPapers
DOI: 10.5593/SGEM2015/B13/S5.120

REAL TIME EARTHQUAKE LOCATION PERFORMANCE OF ROMANIAN SEISMIC NETWORK (RONET) FOR VRANCEA INTERMEDIATE DEPTH EARTHQUAKES, AS THE FIRST STEP IN EEWS

M. G. Craiu, A. Marmureanu, A. Craiu, C. Ionescu
Friday 7 August 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-33-9 / ISSN 1314-2704, June 18-24, 2015, Book1 Vol. 3, 925-932 pp

ABSTRACT
An earthquake early warning system allows to detect an ongoing earthquake in real time and it is able to issue fast notification alerts depending on the potential to cause damage in a target site before the destructive seismic waves arrives. All these earthquake early warning systems (EEWS) are using rapid telemetric analysis of real-time data from seismic sensors deployed in the epicentral area. The National Institute for Earth Physics (NIEP) operates a real-time seismic network designed to monitor the seismic activity on the Romania territory, dominated by the Vrancea intermediate-depth (60-200 km) earthquakes. The NIEP real-time network currently consists of 102 stations and two seismic arrays equipped with different high quality digitizers (Kinemetrics K2, Quanterra Q330, Quanterra Q330HR, PS6-26, Basalt), broadband and short period seismometers (CMG3ESP, CMG40T, KS2000, KS54000, KS2000, CMG3T,STS2, SH-1, S13, Mark l4c, Ranger, gs21, Mark l22) and acceleration sensors (EpisensorKinemetrics).
The seismicity of Romania is significantly affected by earthquakes produced by the Vrancea seismic source with intermediate depth events (3 shocks/century with magnitude Mw greater than 7.0).
In this paper we present the performance of the seismic network in rapidly locate intermediate depth events occurring in the Vrancea area. Since rapid location of earthquakes is the first step in issuing early warning notifications, by reducing the time of the first valid location will lead to an increase the lead-time interval. Rapid location of events will allow a future upgrade of EEWS to cover the entire Romanian territory.

Keywords: EEWS, real time seismology

PAPER 10.5593/SGEM2015/B13/S5.120 : REAL TIME EARTHQUAKE LOCATION PERFORMANCE OF ROMANIAN SEISMIC NETWORK (RONET) FOR VRANCEA INTERMEDIATE DEPTH EARTHQUAKES, AS THE FIRST STEP IN EEWS

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