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Spectral-based Probabilistic Seismic Hazard Analysis for Fethiye, Muğla
Acta Geologica Sinica-English Edition ( IF 3.3 ) Pub Date : 2021-08-11 , DOI: 10.1111/1755-6724.14797
Ebru HARMANDAR 1
Affiliation  

Fethiye is an important region located in the eastern part of the Mediterranean Basin. This region which is the most active part of the south-western Anatolia extensional tectonic regime, has been effected by earthquakes, submarine landslides and tsunamis throughout the history due to the existence of the complex active plate boundary zone. The active area has been exposed to ground motion that had the potential to damage vulnerable structures. Therefore, a detailed assessment of seismic hazard is necessary for the prevention of potential damage. In this context, probabilistic seismic hazard analysis is performed by R-CRISIS-18.3 using the refined parameters computed from Seismic Hazard Harmonization for Europe (SHARE) project. Spatial distribution of spectral acceleration at T = 0.2 s and T = 1.0 s for the earthquake levels that corresponds to the average return period of 72, 475 and 2475 years is calculated. Hazard curves for the central region of Fethiye district are generated. The results are discussed and compared with the values obtained from the Revision of Turkish Seismic Hazard Map Project (UDAP-Ç-13-06). These local results of probabilistic seismic hazard analysis will provide the basis for the preparation of seismic risk maps as future work.

中文翻译:

穆拉费特希耶的基于频谱的概率地震危险分析

费特希耶是位于地中海盆地东部的重要地区。该地区是安纳托利亚西南部伸展构造体系最活跃的部分,由于存在复杂的活动板块边界带,在整个历史上一直受到地震、海底滑坡和海啸的影响。活动区域受到地面运动的影响,可能会损坏脆弱的结构。因此,有必要对地震危险性进行详细评估,以防止潜在的破坏。在这种情况下,概率地震危险分析由 R-CRISIS-18.3 使用从欧洲地震危险协调 (SHARE) 项目计算的细化参数执行。T = 0.2 s 和T时光谱加速度的空间分布= 1.0 s 计算对应于 72、475 和 2475 年平均重现期的地震级别。生成了费特希耶区中部地区的危险曲线。对结果进行了讨论,并与从土耳其地震灾害地图项目 (UDAP-Ç-13-06) 的修订中获得的值进行了比较。概率地震危险性分析的这些局部结果将为作为未来工作的地震危险性图的准备提供基础。
更新日期:2021-08-11
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