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A New Strong - Motion Network in the Eastern Mediterranean

A New Strong - Motion Network in the Eastern Mediterranean. Asst. Prof. M.Tolga Yılmaz Asst . Prof . Zehra Cagnan Middle East Technical University. ORFEUS Observatory Coordination Workshop 12 - 14 November 2012 İstanbul , TURKEY.

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A New Strong - Motion Network in the Eastern Mediterranean

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  1. A New Strong-Motion Network in the Eastern Mediterranean Asst. Prof. M.Tolga Yılmaz Asst. Prof. Zehra Cagnan Middle East Technical University ORFEUS Observatory Coordination Workshop 12-14November 2012 İstanbul, TURKEY

  2. Main Tectonic Structures in the Eastern Mediterranean

  3. Seismic Hazard Assessment for Cyprus and Neighbouring Regions Project CEN (2007) National Annex to Eurocode 8 Develop the first strong motion network for North Cyprus comprised of 13 instruments Develop regional ground motion attenuation relationships and carry probabilistic seismic hazard assessment

  4. Site Selection for the Network Distribution of 2511 M>4.0 events that took place between 2150 BC and 2009.

  5. Site Selection for the Network SRTM90m based slope data Surface Geology Map of Cyprus (Geological Survey Department of Cyprus,1995)

  6. Site Selection for the Network

  7. Final Network Sites

  8. Shallow Seismic and Geotechnical Surveys at KT006

  9. S-wave Velocity Surveys near KT006 by MASW

  10. Diagram for the Seismic Recording System battery battery Laptop B2 24-channel Geode 1 recording unit 24-channel Geode 2 recording unit C2 A1 A2 B1 C1 . 47-m receiver cable * * 1 24 25 48 48 4.5-Hz vertical geophones at 1-m intervals Record 1 shot point Record 2 shot point Record 3 shot point

  11. Shot Records for KT006

  12. S-waveVelocity Profile of upper 30 m for KT006

  13. Geotechnical Surveys near KT006

  14. Comparison of Velocity Profile and Penetration Resistance at KT006

  15. Site Classification according to Vs30 KT007 NEHRP C KT004 NEHRP C KT006 NEHRP C KT005 NEHRP C KT003 KT011 KT013 KT002 KT008 NEHRP D KT012 NEHRP D KT009 NEHRP C KT001 NEHRP C KT010 NEHRP C

  16. Types of the Instruments: Guralp CMG-5TCDE CMG-5TCDE CMG-5TCDE CMG-5TCDE CMG-5TD CMG-5TCDE CMG-5TD CMG-5TD CMG-5TCDE CMG-5TCDE CMG-5TD CMG-5TCDE CMG-5TCDE

  17. Housing of the Instruments

  18. Communication with the Instruments EDGE EDGE EDGE EDGE METU-NCC ADSL EDGE ADSL ADSL EDGE ADSL EDGE ADSL ADSL

  19. First Record: 26.09.2012 Earthquake Time: 01:28:28 GMT (KOERI) Magnitude: 4.6 Mw (USGS) Depth: 12.4 km (KOERI)

  20. Record Processing(Akkar and Bommer, 2006; Akkar et al., 2011)

  21. Comparisons 26 Sep. 2012 Other events Faults NEHRP C NEHRP D PGA (gal) PGA (gal) 26.09.2012 Data 26.09.2012 Data Epicentral Distance (km) Epicentral Distance (km)

  22. PGA PGA 26.09.2012 Data 26.09.2012 Data SA 0.2sn SA 0.2sn 26.09.2012 Data 26.09.2012 Data SA 1.0sn SA 1.0sn 26.09.2012 Data 26.09.2012 Data

  23. Thanks for your attention

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