| DOI: | 10.1002/2014GL062367
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| 论文题名: | Quake clamps down on slow slip |
| 作者: | Wallace L.M.; Bartlow N.; Hamling I.; Fry B.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9469
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| EISSN: | 1944-9200
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| 出版年: | 2014
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| 卷: | 41, 期:24 | | 起始页码: | 8840
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| 结束页码: | 8846
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| 语种: | 英语
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| 英文关键词: | earthquakes
; New Zealand
; slow slip events
; stress change
; subduction
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| Scopus关键词: | Earthquakes
; Faulting
; Shear stress
; New zealand
; Normal stress
; Rate and state friction
; Slow slip events
; Source region
; Stress changes
; subduction
; Subduction zones
; Fault slips
; earthquake
; fault zone
; GPS
; induced seismicity
; shear stress
; slab
; stress change
; subduction zone
; Hikurangi
; New Zealand
; North Island
; Northland
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| 英文摘要: | Using continuous GPS (cGPS) data from the Hikurangi subduction zone in New Zealand, we show for the first time that stress changes induced by a local earthquake can arrest an ongoing slow slip event (SSE). The cGPS data show that the slip rate in the northern portion of the 2013/2014 Kapiti SSE decreased abruptly following a nearby intraslab earthquake. We suggest that deceleration of the Kapiti SSE in early 2014 occurred due to a tenfold increase in the normal stress relative to shear stress in the SSE source, induced by the nearby Mw 6.3 earthquake, consistent with expectations of rate and state friction. Our observation of an abrupt halting/slowing of the SSE in response to stress changes imposed by a local earthquake has implications for the strength of fault zones hosting SSEs and supports the premise that static stress changes are an important ingredient in triggering (or delaying) fault slip. Key Points First observation of a local earthquake arresting slow slipDeceleration of SSE consistent with rate and state frictionEffective stress in the SSE source region is small ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921722717&doi=10.1002%2f2014GL062367&partnerID=40&md5=6b48c36c3df16007d2bb5ba3698bc267
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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/6733
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Institute for Geophysics, University of Texas, Austin, TX, United States
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| Recommended Citation: | |
Wallace L.M.,Bartlow N.,Hamling I.,et al. Quake clamps down on slow slip[J]. Geophysical Research Letters,2014-01-01,41(24).
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