DOI: 10.1002/grl.50713
论文题名: Are the frictional properties of creeping faults persistent? Evidence from rapid afterslip following the 2011 Tohoku-oki earthquake
作者: Fukuda J. ; Kato A. ; Kato N. ; Aoki Y.
刊名: Geophysical Research Letters
ISSN: 0094-8770
EISSN: 1944-8501
出版年: 2013
卷: 40, 期: 14 起始页码: 3613
结束页码: 3617
语种: 英语
英文关键词: afterslip
; fault frictional properties
; GPS
; inversion
; the 2011 Tohoku-oki earthquake
Scopus关键词: 2011 Tohoku-Oki earthquakes
; afterslip
; Earthquake rupture
; Frictional properties
; Geophysical observations
; inversion
; Rupture propagation
; Tohoku-Oki earthquakes
; Earthquakes
; Friction
; Global positioning system
; Faulting
; creep
; earthquake rupture
; shear stress
; slip rate
; Tohoku earthquake 2011
; Japan
英文摘要: Geophysical observations and numerical studies have shown that creeping portions of faults have persistent rate-strengthening frictional properties and can act as barriers to earthquake rupture propagation. On the basis of GPS data following the 2011 MW 9.0 Tohoku-oki earthquake in Japan, we find that the evolution of afterslip and postseismic shear stress on the plate interface is inconsistent with persistent rate-strengthening frictional properties but is consistent with slip-rate-dependent frictional properties that exhibit less rate-strengthening with increasing slip rate. Such slip-rate-dependent frictional properties tend to prevent creeping regions from acting as barriers to rupture propagation and therefore could be an important factor in determining the spatial extent of individual earthquakes. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880879240&doi=10.1002%2fgrl.50713&partnerID=40&md5=14c82b20ed73d96304ce173887e0d28b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6034
Appears in Collections: 气候减缓与适应
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作者单位: Earthquake Research Institute, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
Recommended Citation:
Fukuda J.,Kato A.,Kato N.,et al. Are the frictional properties of creeping faults persistent? Evidence from rapid afterslip following the 2011 Tohoku-oki earthquake[J]. Geophysical Research Letters,2013-01-01,40(14).