DOI: 10.1002/2016GL067866
论文题名: Reactivated afterslip induced by a large regional earthquake, Fiordland, New Zealand
作者: Hamling I.J. ; Hreinsdóttir S.
刊名: Geophysical Research Letters
ISSN: 0094-9255
EISSN: 1944-8986
出版年: 2016
卷: 43, 期: 6 起始页码: 2526
结束页码: 2533
语种: 英语
英文关键词: aseismic
; earthquake
; GPS
; InSAR
; New Zealand
; stress transfer
Scopus关键词: Deformation
; Earthquakes
; Faulting
; Geophysics
; Global positioning system
; Seismology
; Synthetic aperture radar
; Aseismic
; InSAR
; Interferometric synthetic aperture radars
; New zealand
; Postseismic deformation
; Regional earthquakes
; Stress transfer
; Subduction interface
; Fault slips
; deformation
; earthquake
; earthquake magnitude
; earthquake rupture
; fault slip
; GPS
; slip rate
; stress change
; stress field
; subduction
; synthetic aperture radar
; Dusky Sound
; Fiordland
; George Sound
; New Zealand
; South Island
; Southland
英文摘要: The evaluation of seismic hazard along active faults requires knowledge of the long term slip rate, the portions of the fault which are accumulating strain, and the magnitude, number, and location of past earthquakes. Aseismic slip will lower the long-term seismic potential, but the distribution of seismic versus aseismic slip along faults is often poorly constrained. Changes to the local stress field may cause the distribution of slip to vary over time periods shorter than the seismic cycle, making it difficult to assess. Using interferometric synthetic aperture radar and GPS data, we present the coseismic and postseismic deformation associated with the 2007 Mw 6.8 George Sound (New Zealand) earthquake and the influence of the 2009 Mw 7.8 Dusky Sound earthquake on the postseismic deformation. Our results suggest that the stress change induced by the later magnitude 7.8 earthquake led to a period of reactivated aseismic slip along the Puysegur subduction interface which ruptured 2 years earlier. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977934922&doi=10.1002%2f2016GL067866&partnerID=40&md5=86bbfb3f6a7c0e573c9d4def06518ab4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10218
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:
Hamling I.J.,Hreinsdóttir S.. Reactivated afterslip induced by a large regional earthquake, Fiordland, New Zealand[J]. Geophysical Research Letters,2016-01-01,43(6).