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Probabilistic Seismic Hazard Assessment for Himalayan-Tibetan Region from Historical and Instrumental Earthquake Catalogs
Rahman, MM (Rahman, M. Moklesur)1,2,3; Bai, L (Bai, Ling)1; Khan, NG (Khan, Nangyal Ghani)1; Li, GH (Li, Guohui)1
Source PublicationPURE AND APPLIED GEOPHYSICS
2018-02-01
Volume175Issue:2  特刊: SIPages:685-705
DOI10.1007/s00024-017-1659-y
AbstractThe Himalayan-Tibetan region has a long history of devastating earthquakes with wide-spread casualties and socio-economic damages. Here, we conduct the probabilistic seismic hazard analysis by incorporating the incomplete historical earthquake records along with the instrumental earthquake catalogs for the Himalayan-Tibetan region. Historical earthquake records back to more than 1000 years ago and an updated, homogenized and declustered instrumental earthquake catalog since 1906 are utilized. The essential seismicity parameters, namely, the mean seismicity rate gamma, the Gutenberg-Richter b value, and the maximum expected magnitude M (max) are estimated using the maximum likelihood algorithm assuming the incompleteness of the catalog. To compute the hazard value, three seismogenic source models (smoothed gridded, linear, and areal sources) and two sets of ground motion prediction equations are combined by means of a logic tree on accounting the epistemic uncertainties. The peak ground acceleration (PGA) and spectral acceleration (SA) at 0.2 and 1.0 s are predicted for 2 and 10% probabilities of exceedance over 50 years assuming bedrock condition. The resulting PGA and SA maps show a significant spatio-temporal variation in the hazard values. In general, hazard value is found to be much higher than the previous studies for regions, where great earthquakes have actually occurred. The use of the historical and instrumental earthquake catalogs in combination of multiple seismogenic source models provides better seismic hazard constraints for the Himalayan-Tibetan region.
WOS IDWOS:000426100500013
Language英语
Indexed BySCIE
KeywordGROUND-MOTION LITHOSPHERIC STRUCTURE TIEN-SHAN MAGNITUDE INDIA NEPAL EUROPE MODEL RISK DEFORMATION
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
Cooperation Status国际
ISSN0033-4553
Department大陆碰撞与高原隆升重点实验室
PublisherSPRINGER BASEL AG
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8739
Collection图书馆
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Univ Jessore Sci & Technol, Dept Petr & Min Engn, Jessore 7408, Bangladesh.
Recommended Citation
GB/T 7714
Rahman, MM ,Bai, L ,Khan, NG ,et al. Probabilistic Seismic Hazard Assessment for Himalayan-Tibetan Region from Historical and Instrumental Earthquake Catalogs[J]. PURE AND APPLIED GEOPHYSICS,2018,175(2  特刊: SI):685-705.
APA Rahman, MM ,Bai, L ,Khan, NG ,&Li, GH .(2018).Probabilistic Seismic Hazard Assessment for Himalayan-Tibetan Region from Historical and Instrumental Earthquake Catalogs.PURE AND APPLIED GEOPHYSICS,175(2  特刊: SI),685-705.
MLA Rahman, MM ,et al."Probabilistic Seismic Hazard Assessment for Himalayan-Tibetan Region from Historical and Instrumental Earthquake Catalogs".PURE AND APPLIED GEOPHYSICS 175.2  特刊: SI(2018):685-705.
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