Abstract:Using the three-dimensional coseismic formation GPS data of Wenchuan earthquake in 2008, combined with the dislocation model, the three dimensional velocity of Longmenshan fault is inversed by PSO. The result shows that: Longmenshan Shanqian, Longmenshan Houshan, and Longmenshan Zhongyang faults are reverse faults. Longmenshan Zhongyang fault has dextral character. The greatest velocity is at Longmenshan Zhongyang fault. The slip velocity of the fault corresponds with coseimic dislocation on earth.
LIU Jie. Coseismic Slip of Wenchuan Earthquake Inversed by Particle Swarm Optimization Algorithm Using Three-Dimensional Data[J]. jgg, 2019, 39(2): 127-130.