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| Large slip rate detected at the seismogenic zone of the 2008 MW7.9 Wenchuan earthquake |
| Qifu Chen1, Le Li1, 2, Fenglin Niu2, Jinrong Su3 |
1 Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China
2 Department of Earth Science, Rice University, Houston, TX 77005, USA
3 Earthquake Administration of Sichuan Province, Chengdu 610004, China |
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Abstract Repeating microearthquakes were identified along the edge of the rupture area of the 2008 MW7.9 Wenchuan earthquake. Slip rates at depths derived from seismic moments and recurrence intervals are found to be systematically larger than those observed at surface. This large deep slip rate may explain the odds about the occurrence of this unanticipated event. Our observations here suggested that seismic hazard could be underestimated if surface measurements alone are employed.
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Received: 29 September 2010
Published: 10 February 2011
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| Fund:China Earthquake Administration under grants 200708008 and IES02092405 |
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Corresponding Authors:
Qifu Chen
E-mail: chenqf@seis.ac.cn
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| [1] |
Yu Wang, Shengli Ma, Toshihiko Shimamoto, Lu Yao, Jianye Chen, Xiaosong Yang, Honglin He, Jiaxiang Dang, Linfeng Hou, Tetsuhiro Togo. Internal structures and high-velocity frictional properties of Longmenshan fault zone at Shenxigou activated during the 2008 Wenchuan earthquake[J]. Earthquake Science, 2014, 27(5): 499-528. |
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