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Large slip rate detected at the seismogenic zone of the 2008 M_W7.9 Wenchuan earthquake |
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| Authors: | Qifu Chen Le Li Fenglin Niu Jinrong Su Institute of Earthquake Science China Earthquake Administration Beijing China |
| Affiliation: | Qifu Chen 1,Le Li 1,2 Fenglin Niu 2 and Jinrong Su 3 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 |
| 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. |
| Keywords: | deep slip rate repeating microearthquake Wenchuan earthquake |
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