Abstract
After brief introduction of the Guidelines for Seismic Safety Evaluation of Dams (draft) issued in 2005, damage to 8 dams of various types caused by recent earthquakes that occurred in the vicinities of the dams during 2004 and 2009, such as Niigata-Chuetsu, Iwate-Miyagi inland earthquakes, Japan, and Wenchuan earthquake, China is explained with some lessons learned. Cases of strengthening or reconstruction of 3 dams in U.S.A. and Canada are outlined with some findings. Finally, recent research on seismic performance of dam-gates under hydrodynamic pressure is summarized.
