| DOI: | 10.1002/2016GL069427
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| 论文题名: | Asperity break after 12 years: The Mw6.4 2015 Lefkada (Greece) earthquake |
| 作者: | Sokos E.; Zahradník J.; Gallovič F.; Serpetsidaki A.; Plicka V.; Kiratzi A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9564
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| EISSN: | 1944-9295
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| 出版年: | 2016
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| 卷: | 43, 期:12 | | 起始页码: | 6137
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| 结束页码: | 6145
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| 语种: | 英语
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| 英文关键词: | Cephalonia Transform Fault
; earthquake complexity
; segmentation
; slip inversion
; strike-slip fault
; strong asperity
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| Scopus关键词: | Faulting
; Geophysics
; Image segmentation
; Seismology
; Strike-slip faults
; Structural geology
; Tectonics
; Transform faults
; Aftershock distributions
; Earthquake sequences
; Multiple point sources
; Seismic datas
; Short time scale
; Slip inversion
; Strong asperity
; Western Greece
; Earthquakes
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| 英文摘要: | The Mw6.4 earthquake sequence of 2015 in western Greece is analyzed using seismic data. Multiple point source modeling, nonlinear slip patch, and linear slip inversions reveal a coherent rupture image with directivity toward the southwest and several moment release episodes, reflected in the complex aftershock distribution. The key feature is that the 2015 earthquake ruptured a strong asperity, which was left unbroken in between two large subevents of the Mw6.2 Lefkada doublet in 2003. This finding and the well-analyzed Cephalonia earthquake sequence of 2014 provide strong evidence of segmentation of the major dextral Cephalonia-Lefkada Transform Fault (CTF), being related to extensional duplex transform zones. We propose that the duplexes extend farther to the north and that the CTF runs parallel to the western coast of Lefkada and Cephalonia Islands, considerably closer to the inhabited islands than previously thought. Generally, this study demonstrates faulting complexity across short time scales (earthquake doublets) and long time scales (seismic gaps). ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978275808&doi=10.1002%2f2016GL069427&partnerID=40&md5=dc898d55fdbd061ba937af1d625e5d28
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/10527
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| 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: | Department of Geology, Seismological Laboratory, University of Patras, Patras, Greece
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| Recommended Citation: | |
Sokos E.,Zahradník J.,Gallovič F.,et al. Asperity break after 12 years: The Mw6.4 2015 Lefkada (Greece) earthquake[J]. Geophysical Research Letters,2016-01-01,43(12).
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