Triggered slip on a back reverse fault in the Mw6.8 2013 Lushan, China earthquake revealed by joint inversion of local strong motion accelerograms and geodetic measurements
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- 作者：Guohong Zhanga ; b ; zhanggh@ies.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Eric A. Hetlandb ; Xinjian Shana ; Martin Vallé ; ec ; Yunhua Liua ; Yingfeng Zhanga ; Chunyan Qua
- 关键词：Triggered fault slip ; Back reverse fault ; Joint inversion ; Local strong motion data ; Geodetic measurements ; The 2013 Lushan earthquake
- 刊名：Tectonophysics
- 出版年：2016
- 出版时间：16 March 2016
- 年：2016
- 卷：672-673
- 期：Complete
- 页码：24-33
- 全文大小：2189 K
文摘
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We obtain a robust rupture process model of the 2013 Lushan earthquake by joint inversion of seismic and geodetic data.
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Our joint inversion best model involves the rupture of two opposing faults, a main fault and a secondary fault.
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Slip on the secondary fault segment was likely triggered by the coseismic slip on the main blind thrust fault.
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Our inferred coseismic slip model is consistent with strain accumulation models on the Longmenshan fault derived from GPS.