DOI: 10.1002/2015GL065298
论文题名: The 2003-2004 seismic swarm in the western Corinth rift: Evidence for a multiscale pore pressure diffusion process along a permeable fault system
作者: Duverger C. ; Godano M. ; Bernard P. ; Lyon-Caen H. ; Lambotte S.
刊名: Geophysical Research Letters
ISSN: 0094-9410
EISSN: 1944-9141
出版年: 2015
卷: 42, 期: 18 起始页码: 7374
结束页码: 7382
语种: 英语
英文关键词: active fault structure
; continental tectonics
; Corinth rift
; microseismicity
; pore pressure diffusion
Scopus关键词: Diffusion
; Pore pressure
; Seismology
; Tectonics
; Active fault
; Continental tectonics
; Corinth rift
; Microseismicity
; Pressure diffusion
; Faulting
; continental drift
; diffusion
; fault geometry
; pore pressure
; spatiotemporal analysis
; Corinth [Peloponnisos]
; Greece
; Peloponnisos
英文摘要: Microseismic multiplets occurring in the western Corinth rift, Greece, during a large swarm are analyzed to retrieve their spatiotemporal characteristics. These multiplets activated small subfaults at depth (7 km), up to 1 km long, at the root of two parallel active normal faults. The swarm migrates westward nearly horizontally over 10 km at an average velocity of 50 m/d with a diffusivity of 0.5 m2 s-1. It successively activates the Aigion fault, a relay zone in its hanging wall, and the Fassouleika fault. Within each multiplet, hypocenters also migrate with diffusivities ranging from 0.001 to 0.4 m2 s-1. The largest internal diffusivities appear at the core of the layer defined by the clusters. These results are interpreted as a hydroshear process caused by pore pressure migration within permeable corridors resulting from the intersection of the major faults with a brittle geological layer inherited from the Hellenic nappe stack. © 2015 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945471295&doi=10.1002%2f2015GL065298&partnerID=40&md5=89285fb9c998504b92ca660ef13d3dfa
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9025
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Univ. Paris Diderot, UMR7154 CNRS, Paris, France
Recommended Citation:
Duverger C.,Godano M.,Bernard P.,et al. The 2003-2004 seismic swarm in the western Corinth rift: Evidence for a multiscale pore pressure diffusion process along a permeable fault system[J]. Geophysical Research Letters,2015-01-01,42(18).