DOI: 10.1002/grl.50648
论文题名: Simple and reliable finite fault solutions for large earthquakes using the W-phase: The Maule (Mw = 8.8) and Tohoku (Mw = 9.0) earthquakes
作者: Benavente R. ; Cummins P.R.
刊名: Geophysical Research Letters
ISSN: 0094-8787
EISSN: 1944-8518
出版年: 2013
卷: 40, 期: 14 起始页码: 3591
结束页码: 3595
语种: 英语
英文关键词: finite fault inversion
; Maule 2010 earthquake
; rapid source characterization
; Tohoku 2011 earthquake
; W phase
Scopus关键词: 2011 tohoku earthquakes
; Coseismic slip distribution
; Finite fault inversions
; Finite-fault solutions
; Moment tensor solutions
; Rupture velocities
; Source characterization
; W phase
; Faulting
; Waveform analysis
; Earthquakes
; Chile earthquake 2010
; earthquake epicenter
; fault
; slip rate
; Tohoku earthquake 2011
; waveform analysis
英文摘要: We explore the ability of W-phase waveform inversions to recover a first-order coseismic slip distribution for large earthquakes. To date, W-phase inversions for point sources provide fast and accurate moment tensor solutions for moderate to large events. We have applied W-phase finite fault inversion to seismic waveforms recorded following the 2010 Maule earthquake (M w=8.8) and the 2011 Tohoku earthquake (Mw=9.0). Firstly, a W-phase point source inversion was performed to assist us in selecting the data for the finite fault solution. Then, we use a simple linear multiple-time-window method accounting for changes in the rupture velocity with smoothing and moment minimization constraints to infer slip and rake variations over the fault. Our results describe well the main features of the slip pattern previously found for both events. This suggests that fast slip inversions may be carried out relying purely on W-phase records. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880379851&doi=10.1002%2fgrl.50648&partnerID=40&md5=d587af3e080882931472e48a9eaa36cf
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6051
Appears in Collections: 气候减缓与适应
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作者单位: Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia
Recommended Citation:
Benavente R.,Cummins P.R.. Simple and reliable finite fault solutions for large earthquakes using the W-phase: The Maule (Mw = 8.8) and Tohoku (Mw = 9.0) earthquakes[J]. Geophysical Research Letters,2013-01-01,40(14).