DOI: 10.1002/2015GL065446
论文题名: Supershear rupture in the 24 May 2013 Mw 6.7 Okhotsk deep earthquake: Additional evidence from regional seismic stations
作者: Zhan Z. ; Shearer P.M. ; Kanamori H.
刊名: Geophysical Research Letters
ISSN: 0094-8584
EISSN: 1944-8315
出版年: 2015
卷: 42, 期: 19 起始页码: 7941
结束页码: 7948
语种: 英语
英文关键词: deep earthquake
; supershear rupture
Scopus关键词: Geophysics
; Structural frames
; Deep earthquakes
; Joint inversion
; Nonuniqueness
; Rate functions
; Sea of Okhotsk
; Seismic station
; Source time functions
; Supershear rupture
; Earthquakes
; aftershock
; data inversion
; deconvolution
; earthquake magnitude
; earthquake rupture
; seismic data
; seismic moment
; shear modulus
; source parameters
; vertical profile
; waveform analysis
; Khabarovsk [Russian Federation]
; Okhotsk
; Pacific Ocean
; Russian Federation
; Sea of Okhotsk
英文摘要: Zhan et al. (2014a) reported supershear rupture during the Mw 6.7 aftershock of the 2013 Mw 8.3 Sea of Okhotsk deep earthquake, relying heavily on the regional station PET, which played a critical role in constraining the vertical rupture dimension and rupture speed. Here we include five more regional stations and find that the durations of the source time functions derived from these stations are consistent with Zhan et al.'s supershear rupture model. Furthermore, to reduce the nonuniqueness of deconvolution and combine the bandwidths of different stations, we conduct a joint inversion of the six regional stations for a single broadband moment-rate function (MRF). The best fitting MRF, which explains all the regional waveforms well, has a smooth shape without any temporal gaps. The Mw 6.7 Okhotsk deep earthquake is more likely a continuous supershear rupture than a dynamically triggered doublet. Key Points New regional seismic data confirm the supershear rupture during the Mw 6.7 Okhotsk deep earthquake The moment-rate function based on a joint inversion has a smooth shape without any temporal gaps The Mw 6.7 Okhotsk deep earthquake is more likely a continuous rupture than a triggered doublet © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947018351&doi=10.1002%2f2015GL065446&partnerID=40&md5=f2cc52a7af60883524237cdbac8b65e8
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8200
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: Intitute of Geophysics and Planetary Physics, University of California, San Diego, San Diego, CA, United States
Recommended Citation:
Zhan Z.,Shearer P.M.,Kanamori H.. Supershear rupture in the 24 May 2013 Mw 6.7 Okhotsk deep earthquake: Additional evidence from regional seismic stations[J]. Geophysical Research Letters,2015-01-01,42(19).