Analysis of the Crust Deformations before and after the 2008 Wenchuan Ms8.0 Earthquake Based on GPS Measurements

Figure 1

Geological setting. WMF is Wencuan-Maoxian fault, YBQF is Yingxiu-Baichuan-Qingchuan fault, GAF is Guanxian- Anxian fault, XSHF is Xianshuihe fault, ANHF is Anninghe fault, and LQSF is Longmenshan fault. The red circles represent the main- and aftershocks with magnitude greater than 6.0. The red lines show the active faults based on [2]. The inset map shows relative plate motion and the location of our study area. The black arrows show direction and magnitude of plate movements relative to the fixed Eurasian plate, and the black box shows the location of our study area, the western Sichuan province, China.