| DOI: | 10.1002/2013GL058607
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| 论文题名: | Slip rate and tremor genesis in Cascadia |
| 作者: | Wech A.G.; Bartlow N.M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10481
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| EISSN: | 1944-10212
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| 出版年: | 2014
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| 卷: | 41, 期:2 | | 起始页码: | 392
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| 结束页码: | 398
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| 语种: | 英语
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| 英文关键词: | Cascadia
; episodic tremor and slip
; slip rate
; slow slip
; subduction zones
; tectonic tremor
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| Scopus关键词: | Tectonics
; Cascadia
; episodic tremor and slip
; Slip rates
; slow slip
; Subduction zones
; Tectonic tremors
; Earthquakes
; episodic event
; plate boundary
; rheology
; seismology
; slip rate
; subduction zone
; transition zone
; Cascadia Subduction Zone
; Pacific Ocean
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| 英文摘要: | At many plate boundaries, conditions in the transition zone between seismogenic and stable slip produce slow earthquakes. In the Cascadia subduction zone, these events are consistently observed as slow, aseismic slip on the plate interface accompanied by persistent tectonic tremor. However, not all slow slip at other plate boundaries coincides spatially and temporally with tremor, leaving the physics of tremor genesis poorly understood. Here we analyze seismic, geodetic, and strainmeter data in Cascadia to observe for the first time a large, tremor-generating slow earthquake change from tremor-genic to silent and back again. The tremor falls silent at reduced slip speeds when the migrating slip front pauses as it loads the stronger adjacent fault segment to failure. The finding suggests that rheology and slip-speed-regulated stressing rate control tremor genesis, and the same section of fault can slip both with and without detectable tremor, limiting tremor's use as a proxy for slip. ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893179208&doi=10.1002%2f2013GL058607&partnerID=40&md5=c24fe89a3bb583050ff7003bcf9c79e7
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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/7745
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Volcano Science Center, U.S. Geological Survey, Anchorage, AK, United States
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| Recommended Citation: | |
Wech A.G.,Bartlow N.M.. Slip rate and tremor genesis in Cascadia[J]. Geophysical Research Letters,2014-01-01,41(2).
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