DOI: 10.1002/2014GL059465
论文题名: Ten year recurrence time between two major earthquakes affecting the same fault segment
作者: Vallée M. ; Satriano C.
刊名: Geophysical Research Letters
ISSN: 0094-10207
EISSN: 1944-9938
出版年: 2014
卷: 41, 期: 7 起始页码: 2312
结束页码: 2318
语种: 英语
英文关键词: dynamic stress
; earthquake recurrence
; rerupture
; Scotia
; seismic gap hypothesis
Scopus关键词: Faulting
; Dynamic stress
; Earthquake recurrence
; rerupture
; Scotia
; Seismic gaps
; Earthquakes
; earthquake magnitude
; earthquake recurrence
; earthquake rupture
; seismic velocity
; wave propagation
; Antarctica
; Scotia Arc
英文摘要: Earthquake ruptures stop when they encounter barriers impeding further propagation these barriers can theoretically originate from changes of geometry or nature of the seismic faults or from a strong lowering of the tectonic stresses, typically due to the occurrence of a recent major earthquake. We show here that this latter mechanism can be ineffective at stopping rupture expansion: the 17 November 2013 magnitude 7.8 Scotia Sea earthquake has propagated into a 100 km long zone already ruptured 10 years ago by a magnitude 7.6 earthquake. Given the plate velocities between Scotia and Antarctic plates (8-9 mm/yr), simple recurrence models would have predicted that the segment affected by the 2003 earthquake could not be reruptured by a major earthquake during several hundreds of years. This earthquake pair indicates that the variations of the tectonic stress during the seismic history of the fault are small compared to the stresses dynamically generated by a large earthquake. Key Points Two major earthquakes occurred within 10 years on the same fault segment Recurrence time of major earthquakes can be very irregular Stress drop of a recent earthquake can be overcome by dynamic seismic stresses © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897357445&doi=10.1002%2f2014GL059465&partnerID=40&md5=6d7d8e59d30a03470d4cb412a1bafd40
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7471
Appears in Collections: 气候减缓与适应
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作者单位: Institut de Physique du Globe de Paris, Université Paris Diderot, UMR 7154 CNRS, Paris, France
Recommended Citation:
Vallée M.,Satriano C.. Ten year recurrence time between two major earthquakes affecting the same fault segment[J]. Geophysical Research Letters,2014-01-01,41(7).