| DOI: | 10.1002/2016GL070079
|
| 论文题名: | Foreshock migration preceding the 2016 Mw 7.0 Kumamoto earthquake, Japan |
| 作者: | Kato A.; Fukuda J.; Nakagawa S.; Obara K.
|
| 刊名: | Geophysical Research Letters
|
| ISSN: | 0094-8697
|
| EISSN: | 1944-8428
|
| 出版年: | 2016
|
| 卷: | 43, 期:17 | | 起始页码: | 8945
|
| 结束页码: | 8953
|
| 语种: | 英语
|
| 英文关键词: | foreshock migration
; matched filter technique
; propagation of aseismic slip
; seismicity
; stress triggering
; the 2016 Kumamoto earthquake, Japan
|
| Scopus关键词: | Faulting
; Geophysics
; Matched filters
; Filter techniques
; Foreshock migration
; Seismicity
; Stress triggering
; The 2016 Kumamoto earthquake, Japan
; Earthquakes
; algorithm
; dip
; earthquake event
; earthquake magnitude
; earthquake rupture
; earthquake trigger
; foreshock
; seismic migration
; seismicity
; signal processing
; stress field
; strike-slip fault
; waveform analysis
; Japan
; Kumamoto
; Kyushu
|
| 英文摘要: | We investigated the spatiotemporal evolution of an earthquake sequence following a series of large shallow intraplate earthquakes, including a Mw 6.2 foreshock and Mw 7.0 main shock, in the Kumamoto area of Kyushu, SW Japan. To more precisely characterize the evolution of the earthquake sequences, we applied a matched filter technique to continuous waveform data, using template events obtained via a double-difference relocation algorithm. Migrations of seismicity fronts along the directions of fault strike and dip are clearly seen, starting immediately after the Mw 6.2 foreshock. These migrations are interpreted to result from aseismic slip triggered by the foreshock, propagating toward the nucleation point of the subsequent Mw 7.0 main shock rupture. When combined with static stress changes induced by the Mw 6.2 foreshock, it is likely that stress transfer from both aseismic and seismic slip during the foreshock sequence loaded stress onto the main shock rupture faults, bringing them closer to failure. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84985995371&doi=10.1002%2f2016GL070079&partnerID=40&md5=05f4bbbd1b0fb2769f4661b3e4b853da
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9660
|
| 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: | Earthquake Research Institute, University of Tokyo, Tokyo, Japan
|
| Recommended Citation: | |
Kato A.,Fukuda J.,Nakagawa S.,et al. Foreshock migration preceding the 2016 Mw 7.0 Kumamoto earthquake, Japan[J]. Geophysical Research Letters,2016-01-01,43(17).
|
|
|