DOI: 10.1002/2014GL061872
论文题名: A trial estimation of frictional properties, focusing on aperiodicity off Kamaishi just after the 2011 Tohoku earthquake
作者: Ariyoshi K. ; Uchida N. ; Matsuzawa T. ; Hino R. ; Hasegawa A. ; Hori T. ; Kaneda Y.
刊名: Geophysical Research Letters
ISSN: 0094-9546
EISSN: 1944-9277
出版年: 2014
卷: 41, 期: 23 起始页码: 8325
结束页码: 8334
语种: 英语
英文关键词: partial rupturing of asperity
; perturbation of earthquake cycle
; postseismic slip propagation process
; repeating earthquake analysis
Scopus关键词: Friction
; 2011 tohoku earthquakes
; Earthquake cycles
; Frictional properties
; Large earthquakes
; Megathrust earthquakes
; partial rupturing of asperity
; Postseismic slip
; Repeating earthquake
; Earthquakes
; asperity
; earthquake event
; estimation method
; friction
; periodicity
; rupture
; simulation
; Honshu
; Iwate
; Japan
; Kamaishi
; Tohoku
英文摘要: Motivated by the fact that temporal earthquake aperiodicity was observed off Kamaishi just after the 2011 Tohoku earthquake, we performed numerical simulations of chain reactions due to the postseismic slip of large earthquakes by applying rate- and state-dependent friction laws. If the repeater is composed of single asperity, our results show that, (i) a mixture of partial and whole rupturing of a single asperity can explain some of the observed variability in timing and size of the repeating earthquakes off Kamaishi; (ii) the partial rupturing can be reproduced with moderate frictional instability with the aging-law and not the slip or Nagata laws; (iii) the perturbation of the activated earthquake hypocenters observed mostly in the ESE-WNW direction may reflect the fact that the large postseismic slip of the 2011 Tohoku earthquake propagated from ESE to WNW off Kamaishi; (iv) the observed region of repeating earthquake quiescence may reflect the strong plate coupling of megathrust earthquakes. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921493819&doi=10.1002%2f2014GL061872&partnerID=40&md5=562483da68ac9d6bf017d0afaecfffc7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6810
Appears in Collections: 气候减缓与适应
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作者单位: Research and Development Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Recommended Citation:
Ariyoshi K.,Uchida N.,Matsuzawa T.,et al. A trial estimation of frictional properties, focusing on aperiodicity off Kamaishi just after the 2011 Tohoku earthquake[J]. Geophysical Research Letters,2014-01-01,41(23).