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Tsunami hazard assessment for atoll islands inside the South China Sea: A case study of the Xisha Archipelago
Xie, Xintong1,2; Chen, Chuanxu1; Li, Linlin3; Wu, Shiguo1,2,4; Yuen, David A.5,6,7,8; Wang, Dawei1
2019-05-01
Source PublicationPHYSICS OF THE EARTH AND PLANETARY INTERIORS
ISSN0031-9201
Volume290Issue:1Pages:20-35
Abstract

The potential tsunami hazard for atoll islands inside the South China Sea (SCS) has not been investigated previously. In this study, we assess the tsunami hazard for the Xisha Archipelago using a deterministic approach. The tsunami source considered in this study is hypothesized earthquakes in the Manila subduction zone. We employ COMCOT (COrnell Multi-grid Coupled Tsunami model) for tsunami simulations. Different with previous deterministic assessments, our study investigates the uncertainties caused by bathymetric resolution and rupture complexities (here refers to rupture speed and direction variations related to fault geometry complexity). Comparison between results of different resolution suggests that coarser grids may over/underestimate tsunami hazards around mid-ocean atoll islands and this depends on the surrounding bathymetry. But results of different datasets show that GEBCO may lead to a lower result than the multibeam data. We also investigate the uncertainties caused by different rupture speed and direction, which are highly affected by subducting seamounts/ridge. Different rupture direction will shift the hardest hit locations to areas, which are possibly underestimated in cases of instantaneous ruptures. Also, the distribution of slip and location of the rupture zone can affect the local tsunami wave height significantly. We suggest that near-island high-resolution bathymetric data and dynamic rupture process should be considered in future tsunami hazard assessment in locations with similar geological structures.

KeywordTsunami Numerical Modeling South China Sea Xisha Archipelago Seamounts/ridge Subduction Comcot
DOI10.1016/j.pepi.2019.03.003
Indexed BySCI
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences, China ; Natural Science Foundation of China, China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; Sanya-Institute Cooperation Project, Sanya, China
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences, China[XDB06030400] ; Natural Science Foundation of China, China[U170120019] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences[QYZDB-SSW-SYS025] ; Sanya-Institute Cooperation Project, Sanya, China[2018YD04]
WOS KeywordManila Subduction Zone ; Earthquake ; Megathrust ; Records ; Luzon ; Coast ; Slip
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000467509900003
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/6764
Collection深海科学研究部_深海地球物理与资源研究室
研究生部
Corresponding AuthorXie, Xintong; Wu, Shiguo
Affiliation1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Marine Geophys & Georesources, Sanya 572000, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 117576, Singapore
4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Shandong, Peoples R China
5.Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA
6.Univ Minnesota, Minnesota Supercomp Inst, Minneapolis, MN 55455 USA
7.Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10026 USA
8.China Univ Geosci, Sch Comp Sci, Dept Big Data, Wuhan 430074, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Xie, Xintong,Chen, Chuanxu,Li, Linlin,et al. Tsunami hazard assessment for atoll islands inside the South China Sea: A case study of the Xisha Archipelago[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2019,290(1):20-35.
APA Xie, Xintong,Chen, Chuanxu,Li, Linlin,Wu, Shiguo,Yuen, David A.,&Wang, Dawei.(2019).Tsunami hazard assessment for atoll islands inside the South China Sea: A case study of the Xisha Archipelago.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,290(1),20-35.
MLA Xie, Xintong,et al."Tsunami hazard assessment for atoll islands inside the South China Sea: A case study of the Xisha Archipelago".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 290.1(2019):20-35.
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