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タイトル: Sensitivity of tsunami wave profile and inundation simulations to earthquake slip and fault geometry for the 2011 Tohoku Earthquake
著者: Goda, Katsuichiro
Mai, Paul
Yasuda, Tomohiro
Mori, Nobuhito  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-9082-3235 (unconfirmed)
著者名の別形: 森, 信人
キーワード: 2011 Tohoku tsunami
Earthquake source modelling
Tsunami simulation
Uncertainty and sensitivity
analysis of tsunami hazards Background
発行日: 1-Sep-2014
出版者: SpringerOpen
誌名: Earth, Planets and Space
巻: 66
論文番号: 105
抄録: In this study, we develop stochastic random-field slip models for the 2011 Tohoku earthquake and conduct a rigorous sensitivity analysis of tsunami hazards with respect to the uncertainty of earthquake slip and fault geometry. Synthetic earthquake slip distributions generated from the modified Mai-Beroza method captured key features of inversion-based source representations of the mega-thrust event, which were calibrated against rich geophysical observations of this event. Using original and synthesised earthquake source models (varied for strike, dip, and slip distributions), tsunami simulations were carried out and the resulting variability in tsunami hazard estimates was investigated. The results highlight significant sensitivity of the tsunami wave profiles and inundation heights to the coastal location and the slip characteristics, and indicate that earthquake slip characteristics are a major source of uncertainty in predicting tsunami risks due to future mega-thrust events.
著作権等: © Goda et al.; licensee Springer. 2014
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited.
URI: http://hdl.handle.net/2433/214460
DOI(出版社版): 10.1186/1880-5981-66-105
出現コレクション:学術雑誌掲載論文等

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