DOI: 10.1016/j.epsl.2018.01.014
Scopus记录号: 2-s2.0-85044576863
论文题名: Unexpected earthquake hazard revealed by Holocene rupture on the Kenchreai Fault (central Greece): Implications for weak sub-fault shear zones
作者: Copley A. ; Grützner C. ; Howell A. ; Jackson J. ; Penney C. ; Wimpenny S.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 486 起始页码: 141
结束页码: 154
语种: 英语
英文关键词: ductile shear zones
; normal faulting
Scopus关键词: Earthquakes
; Hazards
; Ductile shear zone
; Earthquake cycles
; Earthquake hazard
; Earthquake slip
; Elevation models
; High resolution
; Normal faulting
; Strain accumulations
; Fault slips
; coastal zone
; ductile deformation
; earthquake rupture
; hazard assessment
; Holocene
; normal fault
; paleoseismicity
; shear zone
; slip
; strain
; Greece
; Gulf of Corinth
; Ionian Sea
; Mediterranean Sea
英文摘要: High-resolution elevation models, palaeoseismic trenching, and Quaternary dating demonstrate that the Kenchreai Fault in the eastern Gulf of Corinth (Greece) has ruptured in the Holocene. Along with the adjacent Pisia and Heraion Faults (which ruptured in 1981), our results indicate the presence of closely-spaced and parallel normal faults that are simultaneously active, but at different rates. Such a configuration allows us to address one of the major questions in understanding the earthquake cycle, specifically what controls the distribution of interseismic strain accumulation? Our results imply that the interseismic loading and subsequent earthquakes on these faults are governed by weak shear zones in the underlying ductile crust. In addition, the identification of significant earthquake slip on a fault that does not dominate the late Quaternary geomorphology or vertical coastal motions in the region provides an important lesson in earthquake hazard assessment. © 2018 The Author(s) Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110025
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: COMET, Bullard Labs, Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom; Pressent address: Friedrich Schiller University Jena, Institute of Geological Sciences, Burgweg 11, Jena, 07749, Germany; Pressent address: Seequent, Addington, Christchurch, New Zealand
Recommended Citation:
Copley A.,Grützner C.,Howell A.,et al. Unexpected earthquake hazard revealed by Holocene rupture on the Kenchreai Fault (central Greece): Implications for weak sub-fault shear zones[J]. Earth and Planetary Science Letters,2018-01-01,486