globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL061170
论文题名:
Coseismic and postseismic motion of a landslide: Observations, modeling, and analogy with tectonic faults
作者: Lacroix P.; Perfettini H.; Taipe E.; Guillier B.
刊名: Geophysical Research Letters
ISSN: 0094-9761
EISSN: 1944-9492
出版年: 2014
卷: 41, 期:19
起始页码: 6676
结束页码: 6680
语种: 英语
英文关键词: earthquake ; GPS ; landslide ; rate and state friction ; triggering
Scopus关键词: Earthquakes ; Faulting ; Friction ; Global positioning system ; Interface states ; Time series ; Co-seismic displacement ; Creeping faults ; GPS measurements ; Mechanical analogy ; Mechanical model ; Postseismic slip ; Rate and state friction ; triggering ; Landslides ; active fault ; coseismic process ; creep ; displacement ; GPS ; landslide ; seismic moment ; slip rate ; time series ; Peru
英文摘要: We document the first time series of a landslide reactivation by an earthquake using continuous GPS measurements over the Maca landslide (Peru). Our survey shows a coseismic response of the landslide of about 2 cm, followed by a relaxation period of 5 weeks during which postseismic slip is 3 times greater than the coseismic displacement itself. Our results confirm the coseismic activation of landslides and provide the first observation of a postseismic displacement. These observations are consistent with a mechanical model where slip on the landslide basal interface is governed by rate and state friction, analogous to the mechanics of creeping tectonic faults, opening new perspectives to study the mechanics of landslides and active faults. Key PointsWe document the first GPS time series of a landslide response to an earthquakeThe landslide response is not purely coseismic but lasts for 5 weeksWe show the mechanical analogy of slow-moving landslides and creeping faults ©2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911456157&doi=10.1002%2f2014GL061170&partnerID=40&md5=50a5cb47707d83f27477694fb225cdcb
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7025
Appears in Collections:气候减缓与适应

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作者单位: ISTerre, Université Grenoble Alpes, Grenoble, France

Recommended Citation:
Lacroix P.,Perfettini H.,Taipe E.,et al. Coseismic and postseismic motion of a landslide: Observations, modeling, and analogy with tectonic faults[J]. Geophysical Research Letters,2014-01-01,41(19).
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