Abstract：Based on creep meter data from Xianshuihe fault zone, we analyze, by fault kinematics and principal component analysis method, fault activity characteristics and their relationship with the preparation-occurrence of moderate earthquakes around the Xianshuihe fault and great earthquakes in a large-scale area nearby. The results show that: 1) Current kinematic characteristics of Xianshuihe fault are mainly left strike-slip, the dislocation mode is not singlular but turns dextral strike-slip multiple times; 2) Xianshuihe fault zone creep observation shows anomaly variations before the Baiyu MS5.5, Wenchuan MS8.0, Lushan MS7.0 earthquakes, along with the Kangding MS6.3 earthquake, which is a precursor to those earthquakes; further, the amplitude extension beginning at the end of 2001 is affected by the large regional stress field adjustment after the west Kunlun mountain pass MS8.1 earthquake in 14 November, 2001.
