000009550 001__ 9550
000009550 005__ 20141205150217.0
000009550 04107 $$aeng
000009550 046__ $$k2008-10-12
000009550 100__ $$aBjerrum, Louise W.
000009550 24500 $$aScenario Based Ground Motion Simulations for Assessing the Seismic Hazard in Izmir, Turkey

000009550 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009550 260__ $$b
000009550 506__ $$arestricted
000009550 520__ $$2eng$$aCollision of the Arabian and African plates with Eurasia forces the Anatolian micro-plate to move west-wards. In the Aegean Sea, the Anatolian micro-plate rotates counter-clockwise and extends due to the subduction zone along the Hellenic Arc. This deformation results in reactivation of faults on the west coast of Turkey, which results in destructive earthquakes. İzmir, the third largest city in Turkey, has been destroyed by (large) earthquakes several times in recent history, latest in 1778. In this study, a deterministic seismic hazard analysis is conducted based on ground motion simulations for nine different earthquake rupture scenarios for recognized faults in the area surrounding İzmir. The method adopted is a hybrid broad-band ground motion simulation technique, which has previously been validated. The earthquake scenarios are based on existing knowledge of source parameters, local as well as regional. Among the various faults surrounding İzmir, the largest peak ground motions are associated with two faults, the İzmir fault (normal) which lies underneath the city and the Tuzla fault (strike-slip) which lies southwest of the city. The results indicate that a rupture on the 42 kilometer long İzmir fault can produce ground acceleration as high as 0.3 g on bedrock level in the center of İzmir. Considering the site effect potential in the area, this value needs to be treated as the lower threshold. The simulation results indicate that the historic events that have caused severe destruction in İzmir most likely have occurred on either the İzmir or the Tuzla faults. Furthermore the attenuation of the simulated ground motions agrees well with empirical relations as far as peak ground accelerations are concerned.

000009550 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009550 653__ $$aFault models, Seismic hazard, Earthquake scenarios, Western Turkey, Strong ground motion simulations

000009550 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009550 720__ $$aBjerrum, Louise W.$$iAtakan, K.
000009550 8560_ $$ffischerc@itam.cas.cz
000009550 8564_ $$s576803$$uhttps://invenio.itam.cas.cz/record/9550/files/07-0121.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 07-0121.
000009550 962__ $$r9324
000009550 980__ $$aPAPER