气候变化领域集成服务门户(CCPortal): Probabilistic seismic hazard assessment studies for Mumbai region

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DOI	10.1007/s11069-021-04596-x
	Probabilistic seismic hazard assessment studies for Mumbai region
	Surve G.; Kanaujia J.; Sharma N.
发表日期	2021
ISSN	0921030X
起始页码	575
结束页码	600
卷号	107 期号:1
英文摘要	The present study attempts to understand and assess the seismic hazard of Mumbai using probabilistic seismic hazard analysis (PSHA) with an updated catalogue of earthquake clubbed with recent knowledge on seismotectonics of the region. An updated catalogue of instrumental and pre-instrumental earthquake data within 300 km radius around the city has been compiled from different sources. The PSHA has been computed using two different seismic source models, viz., a fault (linear) and zone model (areal). A hybrid of five suitable ground motion prediction models (GMPM) consisting of widely accepted and latest GMPMs is used to compute the PSHA of Mumbai. The results obtained from different methodologies are integrated with logic tree approach to minimize the epistemic uncertainties in hazard calculation. Probabilistic seismic hazard maps in terms of peak ground accelerations (PGA) at bedrock levels for 2% and 10% probability of exceedance in 50 years are developed for Mumbai. Uniform hazard response spectrum (UHRS) on bedrock at eight different sites within Mumbai for spectral periods of 0.01—2 s is also computed. The low seismic hazard is observed and reasonably compared with the previous PSHA studies done for Mumbai region. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature.
关键词	Logic tree Peak ground acceleration Seismic hazard Seismotectonics Spectral periods
英文关键词	bedrock; earthquake catalogue; ground motion; hazard assessment; peak acceleration; probability; seismic hazard; seismotectonics; spectral analysis; India; Maharashtra; Mumbai
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206593
作者单位	Indian Institute of Geomagnetism (IIG), Plot No. 5, Sector-18, Near Kalamboli Highway, New Panvel, Navi Mumbai, Maharashtra 410 218, India; CSIR-National Geophysical Research Institute (NGRI), Hyderabad, 500007, India
推荐引用方式 GB/T 7714	Surve G.,Kanaujia J.,Sharma N.. Probabilistic seismic hazard assessment studies for Mumbai region[J],2021,107(1).
APA	Surve G.,Kanaujia J.,&Sharma N..(2021).Probabilistic seismic hazard assessment studies for Mumbai region.Natural Hazards,107(1).
MLA	Surve G.,et al."Probabilistic seismic hazard assessment studies for Mumbai region".Natural Hazards 107.1(2021).