川西地区地壳形变和断层位移活动

大地测量资料的分析表明，川西地区的地壳形变和断层位移活动沿着已发展成为块体边界线的鲜水河断裂带—安宁河断裂带—则木河断裂带表现为最强，两侧块体内的断裂活动相对次之。区内的现今形变活动趋势仍继承着晚第四纪以来新构造活动的格局，地震形变是现今形变的最佳表现，断层位移活动具有显著的不均匀性。

Crust deformation and fault displacement nowadays in western region of Sichuan

The analysis results from the seismic observation data based on the geodetic survey,mobile and fixed station measurements show that the amounts of the crust deformation and the displacement nowadays along the three main faults,Xianshuihe,Anninghe and Zemuhe,are bigger than that of other regions and other faults in western regions of Sichuan.The active tendencies of these three main faults nowadays inherit the initial active tendencies formed in Late Quaternary Period.The deformations and displacements between two sides result from the activities of three main faults and their active amounts are not regularly distributed along these three main belts.