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Field investigations show that the Wenchuan earthquake on the 12th of May 2008 ruptured two NW-dipping imbricate reverse faults along the Longmen Shan fault zone. The length of the Beichuan–Yingxiu Fault reaches nearly 240km. Southeast of this fault, a smaller displacement occurred along the Guanxian–Jiangyou Fault, which has a length of about 70km. A NW-striking left-lateral reverse fault, the Xiaoyudong...
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