Deterministic Approach for Seismic Hazard Assessment of Jammu Region, Jammu and Kashmir
Publication: Geo-Congress 2022
ABSTRACT
This study attempts to evaluate the seismic hazard for the Jammu region based on a deterministic approach considering two earthquake scenarios using a logic tree framework. The Peak Ground Acceleration (PGA) values at bedrock level are estimated using already defined GMPEs for the Himalayan region by different researchers. The Main Central Thrust (MCT) and Reasi thrust are found to be the most critical capable of generating PGA > 0.8 g. The findings of the study indicate that the PGA at bedrock level for the region ranged from 0.14 g to 0.67 g. The DSHA in terms of bedrock level PGA for 50th and 84th percentile reveals that the maximum hazard level occurs in the western part of the Jammu region. The DSHA map of bedrock PGA for 50th percentile shows that central part is exposed to severe seismic hazard. The predicted PGA values can be used to assess the seismic stability of existing structures and for the design of earthquake-resistant structures in and around the Jammu region.
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Geo-Congress 2022
Pages: 590 - 598
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Published online: Mar 17, 2022
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