DOI: 10.1002/2016GL068802
论文题名: The 2015 Mw 7.1 earthquake on the Charlie-Gibbs transform fault: Repeating earthquakes and multimodal slip on a slow oceanic transform
作者: Aderhold K. ; Abercrombie R.E.
刊名: Geophysical Research Letters
ISSN: 0094-9716
EISSN: 1944-9447
出版年: 2016
卷: 43, 期: 12 起始页码: 6119
结束页码: 6128
语种: 英语
英文关键词: Charlie-Gibbs transform
; Mid-Atlantic Ridge
; oceanic strike-slip earthquake
; quasi-repeating earthquake
Scopus关键词: Earthquakes
; Faulting
; Geophysics
; Transform faults
; Characteristic slip
; Large earthquakes
; Mid Atlantic Ridge
; Oceanic transform
; Repeating earthquake
; Slip distribution
; Strike-slip earthquakes
; Teleseismic body waves
; Fault slips
; body wave
; earthquake event
; earthquake magnitude
; earthquake rupture
; fault slip
; mid-ocean ridge
; segmentation
; teleseismic wave
; transform fault
; Atlantic Ocean
; Mid-Atlantic Ridge
英文摘要: The 2015 Mw 7.1 earthquake on the Charlie-Gibbs transform fault along the Mid-Atlantic Ridge is the latest in a series of seven large earthquakes since 1923. We propose that these earthquakes form a pair of quasi-repeating sequences with the largest magnitudes and longest repeat times for such sequences observed to date. We model teleseismic body waves and find that the 2015 earthquake ruptured a distinct segment of the transform from the previous 1998 earthquake. The two events display similarities to earthquakes in 1974 and 1967, respectively. We observe large oceanic transform earthquakes to exhibit characteristic slip behavior, initiating with small slip near the ridge, and propagating unilaterally to significant slip asperities nearer the center of the transform. These slip distributions combined with apparent segmentation support multimode slip behavior with fault slip accommodated both seismically during large earthquakes and aseismically in between. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977542460&doi=10.1002%2f2016GL068802&partnerID=40&md5=d77899d343873ad837e69165690d4622
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10679
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: Department of Earth and Environment, Boston University, Boston, MA, United States
Recommended Citation:
Aderhold K.,Abercrombie R.E.. The 2015 Mw 7.1 earthquake on the Charlie-Gibbs transform fault: Repeating earthquakes and multimodal slip on a slow oceanic transform[J]. Geophysical Research Letters,2016-01-01,43(12).