globalchange  > 科学计划与规划
DOI: 10.1002/2016GL070447
论文题名:
Slab segmentation controls the interplate slip motion in the SW Hellenic subduction: New insight from the 2008 Mw 6.8 Methoni interplate earthquake
作者: Sachpazi M.; Laigle M.; Charalampakis M.; Sakellariou D.; Flueh E.; Sokos E.; Daskalaki E.; Galvé A.; Petrou P.; Hirn A.
刊名: Geophysical Research Letters
ISSN: 0094-8649
EISSN: 1944-8380
出版年: 2016
卷: 43, 期:18
起始页码: 9619
结束页码: 9626
语种: 英语
英文关键词: sea-bottom morphology ; segmentation of the interplate thrust fault ; seismic activity and structure ; upper plate deformation
Scopus关键词: Earthquakes ; Geophysics ; Ocean structures ; Plates (structural components) ; Seismographs ; Seismology ; Interplate earthquakes ; Ocean bottom seismometer ; Sea bottom ; Segmentation controls ; Seismic activity ; Teleseismic receiver functions ; Thrust faults ; Upper plate ; Faulting
英文摘要: We present an integrated approach of the seismic structure and activity along the offshore SW Hellenic subduction from combined observations of marine and land seismic stations. Our imaging of the slab top topography from teleseismic receiver function analysis at ocean bottom seismometers supports a trenchward continuation of the along-dip slab faults beneath the Peloponnesus. We further show that their morphostructural control accounts for the backstepping of the thrust contact of the Mediterranean Ridge accretionary wedge over the upper plate. Local seismic activity offshore SW Peloponnesus constrained by ocean bottom seismometer observations reveals a correlation with specific features of the forearc: the Matapan Troughs. We study the Mw 6.8 14.02.2008 interplate earthquake offshore SW Peloponnesus and show that its nucleation, rupture zone, and aftershocks sequence are confined to one slab panel between two adjacent along-dip faults and are thus controlled by not only the offshore slab top segmentation but also the upper plate sea-bottom morphology. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990051263&doi=10.1002%2f2016GL070447&partnerID=40&md5=39144870c910d6e6012668c3201cc351
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9612
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: Institute of Geodynamics, National Observatory of Athens, Athens, Greece

Recommended Citation:
Sachpazi M.,Laigle M.,Charalampakis M.,et al. Slab segmentation controls the interplate slip motion in the SW Hellenic subduction: New insight from the 2008 Mw 6.8 Methoni interplate earthquake[J]. Geophysical Research Letters,2016-01-01,43(18).
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