| DOI: | 10.1002/2016GL068524
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| 论文题名: | Background seismicity in Boso Peninsula, Japan: Long-term acceleration, and relationship with slow slip events |
| 作者: | Reverso T.; Marsan D.; Helmstetter A.; Enescu B.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8983
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| EISSN: | 1944-8714
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| 出版年: | 2016
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| 卷: | 43, 期:11 | | 起始页码: | 5671
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| 结束页码: | 5679
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| 语种: | 英语
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| 英文关键词: | background seismicity
; slow slip events
; swarms
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| Scopus关键词: | Geophysics
; Background seismicity
; Earthquake swarms
; Objective measure
; Slow slip events
; Subduction zones
; Swarms
; Tohoku-Oki earthquakes
; Transient changes
; Earthquakes
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| 英文摘要: | Slow slip events (SSEs) in subduction zones can trigger earthquake swarms, especially at shallow depth. The monitoring of seismicity rates has therefore the potential to help detect and characterize SSEs, and transient changes in coupling. However, the relationship between seismicity rate and slow slip rate during a SSE is unknown and made complicated by aftershock triggering within the swarm. Here we propose to complement geodetic methods with an objective measure of the seismicity rate that is directly associated with changes in slip rate. We show that this measure, applied to known occurrences of SSEs in the Boso area, Japan, yields an estimate, albeit indirect, of their seismic moment, hence their slip rate. We finally prove that the background rate in Boso has been accelerating since 1990; this explains previous observations of the shortening of the recurrence time between SSEs in Boso, that clearly predate the 2011 Mw9.0 Tohoku-Oki earthquake. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84973154416&doi=10.1002%2f2016GL068524&partnerID=40&md5=1aa7abdbe14be1ba02c1c69b1f35640b
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9946
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| 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: | ISTerre, Université de Savoie Mont Blanc, Le Bourget-du-Lac, France
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| Recommended Citation: | |
Reverso T.,Marsan D.,Helmstetter A.,et al. Background seismicity in Boso Peninsula, Japan: Long-term acceleration, and relationship with slow slip events[J]. Geophysical Research Letters,2016-01-01,43(11).
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