During the Wenchuan huge earthquake in Sichuan on 12 May 2008, major of hydroelectric projects run well except that some in the epicenter were destroyed to some extend. By the analysis of the region geology stability and aseismatic safety of huge dams of the cascade hydroelectric power stations on the lower Jinsha River, the results show that all of the four stations stand on the relatively stable block, and the aseismatic safety of the dams meet the requirement of the national specifications and codes.
