[1] Northwest Univ, State Key Lab Continental Dynam, Xian 710069, Peoples R China
[2] Coll Earth Sci, Inst Disaster Prevent, Sanhe 065201, Peoples R China
[3] Hebei Key Lab Earthquake Dynam, Sanhe 065201, Peoples R China
[4] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Peoples R China
[5] Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China