| DOI: | 10.1002/2015GL063036
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| 论文题名: | Seismic fatigue failure may have triggered the 2014 Mw7.9 Rat Islands earthquake |
| 作者: | Miyazawa M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8813
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| EISSN: | 1944-8544
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| 出版年: | 2015
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| 卷: | 42, 期:7 | | 起始页码: | 2196
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| 结束页码: | 2203
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| 语种: | 英语
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| 英文关键词: | 2014 Mw7.9 Rat Islands earthquake
; cyclic fatigue failure
; dynamic triggering
; seismicity model
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| Scopus关键词: | Rats
; Seismology
; Surface waves
; Cyclic fatigue
; Dynamic triggering
; Fatigue failures
; Intermediate-depth earthquakes
; Large earthquakes
; Seismic surface wave
; Time interval
; Transient stress
; Earthquakes
; fatigue
; island
; seismic wave
; seismicity
; surface wave
; transient flow
; wave propagation
; Alaska
; Aleutian Islands
; Rat Island
; United States
; Rattus
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| 英文摘要: | Seismic waves propagating from large earthquakes cause global transient stress changes capable of triggering other earthquakes at great distances. The study of such remote and dynamic triggering phenomena provides a better understanding of the mechanisms that generate earthquakes. I introduce an integrated seismicity model to stochastically evaluate the time intervals of consecutive earthquakes at global scales, making it possible to detect a pair of earthquakes possibly related to each other. I show a Mw7.9 intermediate-depth earthquake that occurred in the Rat Islands in 2014 is inferred to have been associated with a sequence of distant large (Mw≥6.5) earthquakes originating from the Kermadec Islands. The passage of seismic surface waves from the Kermadec events that produced small stress changes varying within at most 10 Pa at the hypocenter, probably caused a reduction in the fault's strength by cyclic fatigue and eventually triggered its failure during their passage. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928698658&doi=10.1002%2f2015GL063036&partnerID=40&md5=763efedcb23e5c3067359b10da7983cd
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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/8429
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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: | Disaster Prevention Research Institute, Kyoto University, Uji, Kyoto, Japan
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| Recommended Citation: | |
Miyazawa M.. Seismic fatigue failure may have triggered the 2014 Mw7.9 Rat Islands earthquake[J]. Geophysical Research Letters,2015-01-01,42(7).
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