Пут бањалучког одреда бб, П.П. 147; тел/факс +387 51/ 433-521, 433-522; Сеизмологија 460-852 Метеорологија и Хидрологија, тел/факс +387 51 /307-943; 346-490, 346 491 E-mail: rhmz@teol.net ЈИБ 4400902400004 EARTHQUAKE MONITORING AND SEISMIC NETWORK OF REPUBLIC OF SRPSKA Vesna Šipka, Dejan Jarić Republic Hydrometeorological Institute of Republic of Srpska, Banja Luka
Republic Hydrometeorological Service of Republic of Srpska Sector of Meteorology Sector of Hydrology and Ecology Sector of Seismology Department of Observational Seismology Department of Instrumental and Engineering Seismology
Seismic monitoring of Republic of Srpska -development of modern seismic network- First seismic station in Banja Luka has been installed after earthquakes at 26. and 27.October 1969 Hydrometeorological Service in Banja Luka is established 1992. and responsible for seismic monitoring of the territory of Republika Srpska. First digital station installed in 2005 Real-time data transmission from 2007 First bb station installed 2009 in Banjaluka by INGV /MedNet Total 3 bb
Seismic network of Republic of Srpska Significant improvement during 2010-2011 period through implementation of DETERMINE Project in Bosnia and Herzegovina with the Slovak AID agency Results: Installation of four new stations/digitizers Wave 24/ Improved coverage of the territory significantly Increased autonomy of seismic monitoring Increased accuracy of the EQ parameters Enabling to record smaller earthquakes Establishing an automatic data processing SC3..and Automatic SMS alert
2016 2008 2011 KNYS PRIJ A051A MRAK A052A BLY DOB BLJ A050A MGRS SRKY HAPS RUDO NEVS KLINJ Seismic Network of Republic of Srpska AlpArray station SP station BB station TREB
2009 2016 2011 KNYS MED BLY BOCA BIR1 SRKY HAPS Accelerometric Network of Republic of Srpska RHMZ station other station NEVS KLINJE VRBA
Seismic network of Republic of Srpska The most interesting part- seismic equipment Sensors SS1 / Kinemetriks LE3Dlite /Lennartz Electronics SM-2 / Russian S5S /Russian Willmore MK-II / Hillger Watts KS2000/Geotech STS2 Episensor FBA-EST Digitizers Q 330 Q730 K2 Wave 24 Lennartz M24 SMART 24 /Geotech Basalt
Seismic network/monitoring of Republic of Srpska current state consists of 10 +2 seismic stations: BB-3, SP-9 / 2 incomplete horizontal seismometers All sites with internet connection (3-3G, 7-ADSL, 1 leased line) Real time data transmission is provided. Data acquisition and processing center in Banja Luka Real time data exchange with all neighboring countries Runing SC3/automatic processing/sms alerting Seismic monitoring of dams Establishing accelerometric network / very slowly
BLZBLY DATA ACQUISITION, PROCESSING and PUBLISHING
AUTOMATIC PROCESSING SEISCOMP 3
MANUAL DATA PROCESSING Seismic Handler Providing manual processed data to EMSC from 2013 SORS- Seismological Observatory of Republic of Srpska
Publishing info about earthquakes web page www.rhmzrs.com
Problems we face Lack of money / our Government does not recognize us as important service / A small number of employees Equipment : old/ different manufacturers/ couses different solutions as well as different problems Inadequate sites / seismic stations located mainly in the vicinity of meteorological stations/
Future plans /while waiting for EQ Unification of seismic equipment? Improving quality of seismic sites? Increase coverage of the territory/ satisfying + 3 more BUT Establishing SM network Improve /better or cheaper/ real-time data transmission satellite internet connection on selected sites/ or use AlpArray experience?? Solving the issue of permanent storage of digital seismograms Establish back-up data center further from Banja Luka/seismic hazard Keep on with seismic monitoring of capital structures and increasing number of SM instruments
Thank you
AlpArray in Bosnia and Herzegovina Republic hydrometeorological institute of Republic of Srpska (1) Institute of Geophysics, ETH Zurich (2) Swiss Seismological Service, ETH Zurich (3) Vesna Šipka 1, Dejan Jarić 1, Saša Šikman 1, Irene Molinari 2, John Clinton 3, Edi Kissling 2
AlpArray in Bosnia and Herzegovina /Republic of Srpska /
A050A Klekovača 934 m - Free field station really good site
A050A Klekovača Free field station The vault preparation
A050A Klekovača - Free field station Installation, November 26, 2015 T =-7 Celsius degree
A050A Noise performances Very LOW noise level HORIZONTAL VERTICAL
A051A Mrakovica 862 m really good, quiet site
A051A Mrakovica 862 m Government facility /Basement good/quiet /safe
A051A Noise performances Very LOW noise level HORIZONTAL VERTICAL
A052A Srbac Free field station Problems: near 2 rivers /aluvion BUT was the only secure location in this area
A052A Srbac Free field station
A052A Noise performances Noise level is quite high but the vertical component is still acceptable VERTICAL Sensor was moved 2 meters away for few months because of flood problem STS-2 masses not centered. Problem solved with remote recentering HORIZONTAL
Noise performance RS stations
Integration between AA station and Seismic Service using the AA stations for routine earthquake locations Extremelly useful especially location small EQ A052 M A051 A050
Integration between AA station and Seismic Service using the AA stations for routine earthquake locations Extremelly useful especially for EQ monitoring of the western part A052 A051 A050
Conclusion Three AlpArray stations improve our network geometry Real time AA data are including in our daily routine AlpArray sites AO50A and AO51 excellent All three sites will be turned on permanent when project activities finish These 3 stations also need maintaining /12+3
Thank you