Seismo-geological Ambiance Analyses of Reservoir-Induced Earthquake in Xiaowan Area

On the basis of reference [1], through the analyses of rock media, geological structures, tectonic stress field and seismic active characteristics in the reservoir area and nearby, it is considered that the geological ambiance of reservoir-induced earthquake in Xiaowan area is complicated. There exist three types of geneses for conditions of reservoir-induced earthquake, such as karst type, fissure type and structure type. However, the structural reservoir-induced earthquake along the Lancangjiang Fault and its sub-faults, as well as the Wuliangshan Fault Zone which crosses the reservoir areas, is the major inducing factors.