| 项目编号: | NE/I005420/1
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| 项目名称: | Postseismic investigation of the February 2010 Chile earthquake: Relaxation processes and the relationship of seismic and aseismic activity. |
| 作者: | Andreas Rietbrock
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| 承担单位: | University of Liverpool
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| 批准年: | 2009
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| 开始日期: | 2010-23-04
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| 结束日期: | 2012-22-04
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| 资助金额: | GBP82965
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| 资助来源: | UK-NERC
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| 项目类别: | Research Grant
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| 国家: | UK
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| 语种: | 英语
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| 特色学科分类: | Geosciences 
; (100%)
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| 英文摘要: | The magnitude 8.8 earthquake off the coast of Chile on 27 February 2010 is the fifth largest megathrust earthquake ever to be recorded and provides unprecedented opportunities to further our understanding of megathrust earthquakes and associated processes. We propose to co-locate 12 continuous GPS stations and broadband seismometers to measure postseismic activity following the 27 February 2010 Chile earthquake, in order to evaluate (1) the relative contributions of localised afterslip and mantle flow to postseismic stress relaxation, (2) whether there is any temporal/spatial interrelationship of seismic and aseismic activity on the plate interface, and (3) whether seismic properties in the subducting slab or overriding plate have changed or are changing on account of the rupture. Very few studies of postseismic deformation for large subduction zone earthquakes exist, and this event affords an excellent opportunity to investigate the time-dependent state of stress on and near the plate interface and the associated effects on the seismic properties. Our study complements a multinational effort (Chile, US, France, Germany, UK) in data collection and research into the source processes of such a large subduction thrust earthquake. The results of this study are likely to inform earthquake hazard assessment in this and other areas of the world. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/103652
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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: | University of Liverpool
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| Recommended Citation: | |
Andreas Rietbrock. Postseismic investigation of the February 2010 Chile earthquake: Relaxation processes and the relationship of seismic and aseismic activity.. 2009-01-01.
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