Determination of Design Earthquake Magnitude by Deterministical Approach in Duzce District, Turkey
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CEPPIS_2018_ost_85-95.pdf (985.56 KB)
Authors
Date
2018
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Journal ISSN
Volume Title
Publisher
BGJ Consulting
Abstract
This study presents an evaluation of earthquake risk in Duzce city in Turkey. The seismicity of Duzce has been suyveyed by using the earthquakes M ≥ 5.0 that occurred in the region for the time interval 1967-2003.This study has been performed utilizing time independent probabilistic model to predict the future earthquakes activities. The North Anatolian Fault (NAF), which runs through the northern region of Turkey (between the Eurasian and Arabian plates), has been highly Known in recent years due to a couple of large earthquakes that occurred along the (NAF) way. Recently, a magnitude 7.2 earthquake struck Duzce city on November 12, 1999; its epicenter located in the town of Duzce. Available reports indicate that more than 100 buildings were destroyed, approximately 400 confirmed dead and over 800 injured. Turkey has a long history of major ground shaking along the North Anatolian Fault. The seismicity along this fault is dominated by intermediate to large magnitude events with relatively few small events. Since 1939, there have been 11 magnitude 6.7 or greater earthquakes along the fault, (nine of which had magnitudes greater than 7.0) making it one of the most seismically active right-lateral strike-slip faults in the world. These previous earthquakes follow a pattern that progresses generally in the western direction along the fault. The North Anatolian Fault extends more than 1400 km. A right-lateral fault is one that, if an observer was standing on one side of the fault looking towards the other side, the observer would see the ground on the other side of the fault move to the right. A strike-slip fault describes the relative motion of the ground on either side of the rupture as parallel to the fault direction.