中文摘要：

针对川滇地区地震活动频繁的现状,该文首先对1998—2008年和2008—2015年该地区两期GNSS连续观测数据进行解算（时间节点为汶川地震）;然后结合前人对川滇区域棱形块体的划分方案,基于欧拉矢量计算方法求出各块体的欧拉矢量以及旋转极经度、旋转极纬度、旋转角速度,并通过反欧拉矢量方法反演出鲜水河-小江断裂带和龙门山断裂带的错动趋势变化。结果表明：汶川地震造成两条断裂带在错动方向和错动速率方面均有变化,并且主要集中在川滇区域北部和西部的断裂带上。

英文摘要：

In this paper,the two GNSS continuous observation data in 1998-2008 and 2008-2015 were used for solution（time node for the Wenchuan earthquake）.Combined with the previous classification scheme of Sichuan-Yunnan rhombus block area,the Euler vector,the longitude of pole of rotation,the latitude of pole of rotation and rotative speed of each block were calculated by Euler vector calculation method,meanwhile the trend of Xianshuihe-Xiaojiang fault and Longmenshan Mountain fault were analyzed through inverse Euler vector method.The results showed that the Wenchuan earthquake caused change in the direction and rate of the two fault zones,which were distributed mainly over the northern and western part of the Sichuan-Yunnan region.