FAULT TECTONICS AND SEISMIC ACTIVITY CHARACTERISTICS
OF THREE GORGES RESERVOIR
1)Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071
2)Institute of Geophysics, China Earthquake Administration, Beijing 100081
Abstract:The tectonic structure and seismicity were analyzed by the space distribution of earthquake, the water level changes and focal depths of seismicity. The result shows that the earthquakes are mainly distributed in the Dongrangkou, Huofeng, Xietan area, and along the Gaoqiao fault and Xiannüshan fault. In the Dongrangkou and Huofeng areas, the earthquakes are mainly caused by Karst collapse. And for the earthquakes in the Xietan area, they are closely related with landslid and coal mine, and the genesis can be contributed to the mine collapse and superficial unloading. Whereas, those earthquakes along the Gaoqiao fault and Xiannüshan fault are mainly caused by the structures.
Wang Qiuliang,Zhang Lifen,Liao Wulin et al. FAULT TECTONICS AND SEISMIC ACTIVITY CHARACTERISTICS
OF THREE GORGES RESERVOIR[J]. jgg, 2013, 33(5): 29-33.