DOI: 10.1002/2014GL062767
论文题名: InSAR imaging of displacement on flexural-slip faults triggered by the 2013 Mw 6.6 Lake Grassmere earthquake, central New Zealand
作者: Kaneko Y. ; Hamling I.J. ; Van Dissen R.J. ; Motagh M. ; Samsonov S.V.
刊名: Geophysical Research Letters
ISSN: 0094-8993
EISSN: 1944-8724
出版年: 2015
卷: 42, 期: 3 起始页码: 781
结束页码: 788
语种: 英语
英文关键词: flexural-slip faults
; InSAR observations
; triggered surface slip
Scopus关键词: Earthquakes
; Faulting
; Lakes
; Stress analysis
; Synthetic aperture radar
; Dislocation models
; InSAR observations
; Interferometric synthetic aperture radars
; Multiple faults
; Shallow depths
; Static stress
; Surface offsets
; Surface slips
; Fault slips
; Coulomb criterion
; dislocation
; displacement
; earthquake epicenter
; earthquake magnitude
; flexure
; seismic wave
; slip rate
; synthetic aperture radar
; New Zealand
英文摘要: Interferometric Synthetic Aperture Radar (InSAR) data reveal surface slip on multiple faults triggered by the 2013 Mw 6.6 Lake Grassmere earthquake, New Zealand. Surface offsets of 1-2cm occurred on previously inferred flexural-slip faults located â4km from the epicenter. We document dip slip on at least three different northeast striking, northwest dipping, flexural-slip faults located in the western limb of a syncline. The along-strike extent of the triggered slip is 1-1.5km for each fault. Dislocation models suggest that triggered slip is confined to shallow depths (â800m). Coulomb stress analysis indicates that slip was not triggered by the static stress change of the main shock but was likely caused by dynamic shaking during the passage of seismic waves. Our finding also provides an important clue on how some slip on shallow flexural-slip faults takes place. © 2015 The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925111417&doi=10.1002%2f2014GL062767&partnerID=40&md5=f38ec271020d75e595109c73f3bc105b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8609
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: GNS Science, Lower Hutt, New Zealand
Recommended Citation:
Kaneko Y.,Hamling I.J.,Van Dissen R.J.,et al. InSAR imaging of displacement on flexural-slip faults triggered by the 2013 Mw 6.6 Lake Grassmere earthquake, central New Zealand[J]. Geophysical Research Letters,2015-01-01,42(3).