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《Crustal Deformation and Earthquake》 2004-03
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USING GEODETIC DATA TO INVERSE CO-SEISMIC DISLOCATION OF 2001 KUNLUN EARTHQUAKE

Tan Kai1,2, Wang Qi1,2) and Shen Chongyang1,2) 1) Institute of Seismology, CEA, Wuhan 430071 2) Wuhan Base of Institute of Crustal Dynamics, CEA, Wuhan 430071  
On the basis of data of GPS and leveling,we adopt the simulated annealing algorithm and segmented fault dislocation model to inverse the coseismic dislocation during the 2001 Kunlun earthquake. The result suggests that: ①The fault is about 390 km long and dips about 90 degree with the greatest left lateral strike slip distance of about 5-6 meters.The result of inversion reflects basically the overall characteristic of the seismic fracture.②The shear modulus of rock in the study region is about 4.3×10\+\{10\} Pa. ③Combining GPS data with leveling data makes it possible to inverse sevaral parameters simultaneously. Geodetic data accord well with the results of the field investigation.
【Fund】: 昆仑山口西 8.1级地震综合科学考察基金项目;; 国家“十五”科技公关项目 (2 0 0 1BA60 1B0 2 );; 国家自然科学基金项目 (4 0 0 740 2 4)
【CateGory Index】: P315.725
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