Abstract：The coseismic displacement caused by Wenchuan earthquake（Ms8.0）was calculated with four seismic slip models using halfspace(Okada）and spherical dislocation theory（Shen et al)，respectively，and the displacement field calculated and the observation result were compared.Statistical significance caused by fault slipping and dislocation models were analyzed using the method of twofactor variance.Results show that coseismic displacements calculated by the spherical dislocation model is consistent with the observation results，the mean value of residual is 0.007 m，and its trace is 0.006 m.Near the fault rupture，both slipping factor and dislocation factor causing larger mean square deviation，the maximum is S2A=7.170 16 m2，S2B=91.407 7 m2，respectively.The significant influence of slipping distribution and dislocation model shows the characteristics of different space distribution，the former is embodied in the near field area，while dislocation model is mainly embodied in the farfield region.
Wang Shuai,Zhang Yongzhi,Jiang Yongtao et al. ANALYSIS OF INFLUENCES OF FAULT SLIPPING DISTRIBUTION
AND DISLOCATION MODEL[J]. jgg, 2014, 34(6): 20-25.
