DOI: 10.1002/2014GL059291
论文题名: Postseismic deformation following the Mw 7.2, 23 October 2011 Van earthquake (Turkey): Evidence for aseismic fault reactivation
作者: Dogan U. ; Demir D.O. ; Çakir Z. ; Ergintav S. ; Ozener H. ; Akoǧlu A.M. ; Nalbant S.S. ; Reilinger R.
刊名: Geophysical Research Letters
ISSN: 0094-10212
EISSN: 1944-9943
出版年: 2014
卷: 41, 期: 7 起始页码: 2334
结束页码: 2341
语种: 英语
英文关键词: afterslip
; GPS
; postseismic deformation
; Van earthquake
Scopus关键词: Deformation
; Earthquakes
; Geodetic satellites
; Global positioning system
; Structural geology
; Synthetic aperture radar
; afterslip
; Aseismic faults
; Elastic dislocation
; Geodetic measurements
; GPS measurements
; Large earthquakes
; Postseismic deformation
; Stress changes
; Fault slips
; coseismic process
; deformation
; dislocation
; earthquake event
; earthquake magnitude
; earthquake rupture
; footwall
; geodesy
; geodetic network
; GPS
; postseismic process
; radar interferometry
; slip
; synthetic aperture radar
; thrust
; Turkey
; Van
英文摘要: Geodetic measurements following the 23 October 2011, Mw-=-7.2 Van (eastern Turkey) earthquake reveal that a fault splay on the footwall block of the coseismic thrust fault was reactivated and slipped aseismically for more than 1.5-years following the earthquake. Although long-lasting aseismic slip on coseismic ruptures has been documented following many large earthquakes, long-lasting, triggered slip on neighboring faults that did not rupture during the earthquake has not been reported previously. Elastic dislocation and Coulomb stress modeling indicate that the postseismic deformation can be adequately explained by shallow slip on both the coseismic and splay fault and is likely driven mostly by coseismic stress changes. Thus, the slip deficit on the shallow section of the coseismic fault indicated by interferometric synthetic aperture radar-based models has been partially filled by aseismic slip, suggesting a lower likelihood for a large earthquake on the shallow section of the Van fault than suggested by previous studies. Key Points GPS measurements following 23 October 2011 Van earthquake Triggered slip on a fault splay from the main rupture The afterslip is driven mostly by coseismic stress changes © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897359140&doi=10.1002%2f2014GL059291&partnerID=40&md5=b8eb1808c3609551be05fb5ace0d400c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7476
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geomatic Engineering, Yildiz Technical University, Istanbul, Turkey
Recommended Citation:
Dogan U.,Demir D.O.,Çakir Z.,et al. Postseismic deformation following the Mw 7.2, 23 October 2011 Van earthquake (Turkey): Evidence for aseismic fault reactivation[J]. Geophysical Research Letters,2014-01-01,41(7).