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

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DOI	10.1007/s11069-020-04107-4
	Probabilistic seismic hazard assessment for Singapore
	Du W.; Pan T.-C.
发表日期	2020
ISSN	0921030X
起始页码	2883
结束页码	2903
卷号	103 期号:3
英文摘要	Seismic hazard assessment of metropolitan areas is an important topic in catastrophe risk management and disaster prevention. In this study, a probabilistic seismic hazard analysis (PSHA) is performed to estimate the seismic hazard for Singapore. The PSHA approach has been conducted based on the OpenQuake engine. An updated earthquake catalog for the neighboring region has been compiled from various sources, and three major source zones are identified using the updated earthquake catalog: Sumatra subduction zone, Sumatran strike–slip fault, and deformation–background zone. Also, 10 published ground motion prediction equations are incorporated in the logic-tree framework, which properly accounts for the epistemic uncertainty of ground motion intensity measures. The peak ground acceleration (PGA) values in the mean hazard maps at bedrock sites of Singapore for 10% and 2% exceedance probability in 50 years range from 0.04 to 0.05 g and from 0.14 to 0.15 g, respectively. The uniform hazard spectrum consisting of PGA and seven spectral accelerations is generated for rock sites in Singapore. Disaggregation analysis shows that the deformation zone identified contributes dominantly to the PGA hazard of Singapore, whereas the Sumatran strike–slip fault contributes dominantly to the long-period (spectral acceleration at 1.0 s) hazard. Besides, the seismic hazard maps for representative site conditions of Singapore are briefly presented. © 2020, Springer Nature B.V.
关键词	PSHA Seismic hazard maps Singapore Strike–slip Subduction Uniform hazard spectrum
英文关键词	deformation; earthquake catalogue; hazard assessment; metropolitan area; probability; seismic hazard; strike-slip fault; subduction zone; Greater Sunda Islands; Singapore [Southeast Asia]; Sumatra; Sunda Isles
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/205676
作者单位	State Key Laboratory of Water Resources and Hydropower Engineering Science, Institute of Engineering Risk and Disaster Prevention, Wuhan University, 299 Bayi Road, Wuhan, 430072, China; Institute of Catastrophe Risk Management, and School of Civil & Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore; Green Buildings and Smart Cities Program, Sino-Singapore International Joint Research Institute (SSIJRI), Guangzhou, 510000, China
推荐引用方式 GB/T 7714	Du W.,Pan T.-C.. Probabilistic seismic hazard assessment for Singapore[J],2020,103(3).
APA	Du W.,&Pan T.-C..(2020).Probabilistic seismic hazard assessment for Singapore.Natural Hazards,103(3).
MLA	Du W.,et al."Probabilistic seismic hazard assessment for Singapore".Natural Hazards 103.3(2020).