Seismic Hazard Assessment at Esfaraen‒Bojnurd Railway, North‒East of Iran

被引：0
作者：
S. Haerifard
H. Jarahi
M. Pourkermani
M. Almasian
机构：
[1] North Tehran Branch of Islamic Azad University,Department of Geosciences
来源：
Geotectonics | 2018年 / 52卷
关键词：
seismotectonics; seismic sources model; seismic hazard; Esfarayen-Bojnurd railway; PSHA method; earthquake catalogue; logic tree; ground acceleration;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The objective of this study is to evaluate the seismic hazard at the Esfarayen-Bojnurd railway using the probabilistic seismic hazard assessment (PSHA) method. This method was carried out based on a recent data set to take into account the historic seismicity and updated instrumental seismicity. A homogenous earthquake catalogue was compiled and a proposed seismic sources model was presented. Attenuation equations that recently recommended by experts and developed based upon earthquake data obtained from tectonic environments similar to those in and around the studied area were weighted and used for assessment of seismic hazard in the frame of logic tree approach. Considering a grid of 1.2 × 1.2 km covering the study area, ground acceleration for every node was calculated. Hazard maps at bedrock conditions were produced for peak ground acceleration, in addition to return periods of 74, 475 and 2475 years.
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页码：151 / 156
页数：5
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