Coseismic vertical deformation of the M_S8.0 Wenchuan earthquake from repeated levelings and its constraint on listric fault geometry |
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| Authors: | Qingliang Wang Duxin Cui Xi Zhang Wenping Wang Jinwen Liu Kang Tian Zhaoshan Song |
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| Affiliation: | [1]Second Monitoring Center, China Earthquake Administration, Xi＇an 710054, China [2]First Monitoring Center, China Earthquake Administration, Tianjin 300180, China |
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| Abstract: | The devastating MS8.0 Wenchuan earthquake ruptured two large parallel thrust faults along the middle segment of the Longmenshan thrust belt.Preseismic and postseismic leveling data indicated the hanging wall of the YingxiuBeichuan-Nanba thrust fault mainly presented coseismic uplift with respect to the reference point at Pingwu county town, and the observed maximum uplift of 4.7 m is located at Beichuan county(Qushan town)which is about 100 m west of the fault scarp.The foot wall of the Yingxiu-Beichuan-Nan... |
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| Keywords: | Wenchuan earthquake leveling vertical deformation listric faulting |
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