DOI: 10.1002/2014GL061686
论文题名: Tsunami surges around the Hawaiian Islands from the 1 April 2014 North Chile M<inf>w</inf> 8.1 earthquake
作者: Bai Y. ; Cheung K.F. ; Yamazaki Y. ; Lay T. ; Ye L.
刊名: Geophysical Research Letters
ISSN: 0094-9504
EISSN: 1944-9235
出版年: 2014
卷: 41, 期: 23 起始页码: 8512
结束页码: 8521
语种: 英语
英文关键词: 2014 Iquique earthquake
; finite-fault inversion
; harbor resonance
; iterative forward modeling
; tsunami modeling
; tsunami surges
Scopus关键词: Earthquakes
; Faulting
; Gages
; Tide gages
; Compact dimensions
; Finite fault inversions
; Finite fault modeling
; Forward modeling
; Harbor resonance
; Radiated energies
; Teleseismic body waves
; Tsunami models
; Tsunamis
; earthquake rupture
; fault slip
; seafloor
; thrust fault
; tsunami
; wave height
; Chile
; Hawaiian Islands
英文摘要: The 1 April 2014 Iquique Mw 8.1 earthquake ruptured a segment of the megathrust fault offshore of northern Chile and generated a moderate-size tsunami across the Pacific. Tide gauges in Hawaii recorded over 1 m of wave height despite the long distance from the source and position away from the main radiated energy lobe. Inversion of global teleseismic body waves combined with forward modeling of the tsunami at four near-field DART stations arrives iteratively at a self-consistent finite-fault model with very compact dimensions. The slip distribution produces a NNE-SSW trending seafloor uplift patch that enhances the tsunami directionality in the WNW, resulting in good matches to observed DART and tide gauge records around the Hawaiian Islands. The relatively large waves at selected locations in Hawaii can be attributed to a combination of the spatial slip distribution and the resulting short-period waves that triggered localized resonance over the insular shelves. This event highlights the importance of characterizing detailed slip distributions in analysis or forecasting of tsunamis even for a compact source. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921516921&doi=10.1002%2f2014GL061686&partnerID=40&md5=2ec4159b9a9c1f3f4b01a00ce00a7cb7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6768
Appears in Collections: 气候减缓与适应
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作者单位: Department of Ocean and Resources Engineering, University of Hawaii at Manoa, Honolulu, HI, United States
Recommended Citation:
Bai Y.,Cheung K.F.,Yamazaki Y.,et al. Tsunami surges around the Hawaiian Islands from the 1 April 2014 North Chile M<inf>w</inf> 8.1 earthquake[J]. Geophysical Research Letters,2014-01-01,41(23).