DOI: 10.1002/2014GL062513
论文题名: Imaging supershear rupture for the 2014 Mw 6.9 Northern Aegean earthquake by backprojection of strong motion waveforms
作者: Evangelidis C.P.
刊名: Geophysical Research Letters
ISSN: 0094-9035
EISSN: 1944-8766
出版年: 2015
卷: 42, 期: 2 起始页码: 307
结束页码: 315
语种: 英语
英文关键词: Earthquake Backprojection
; North Aegean Trough
; Supershear Rupture
Scopus关键词: Earthquakes
; Seismology
; Back-projection
; Fault geometry
; North aegean
; Seismic hazards
; Seismic source
; Spatiotemporal evolution
; Supershear rupture
; Supershear velocities
; Faulting
; earthquake epicenter
; earthquake rupture
; fault geometry
; fault propagation
; seismic migration
; spatiotemporal analysis
; stacking
; Greece
; Northern Aegean
英文摘要: The seismic source spatiotemporal evolution of the Mw 6.9 event on 24 May 2014 in Northern Aegean is imaged by backprojection of strong motion envelopes. The results indicate that the event ruptured on two different fault segments. In the first one, rupture propagated from the hypocenter westward for ∼20 km. In the second delayed segment to the east, rupture propagated eastward for ∼65 km with a supershear velocity (∼5.5 km/s). At the end of this rupture the largest stacking amplitudes are imaged, associated with possible stopping phases from the abrupt cessation of a fast slip. Low-aftershock seismicity on the supershear segment implies a simple and linear fault geometry there. This is the third large event in the Northern Aegean Trough-Northern Anatolian Fault zones that has ruptured with supershear speed. This characteristic should be taken into account in studying past events and estimating seismic hazard in this area. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923551931&doi=10.1002%2f2014GL062513&partnerID=40&md5=741e6be7b8617612d576f8cca8e85989
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8651
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:
Evangelidis C.P.. Imaging supershear rupture for the 2014 Mw 6.9 Northern Aegean earthquake by backprojection of strong motion waveforms[J]. Geophysical Research Letters,2015-01-01,42(2).