水库诱发地震已成为影响大坝安全的重大环境问题，会给大坝造成不同程度的危害。以新丰江水库地震和柯依纳水库地震对大坝的破坏为例，探讨水库地震对混凝土大坝的影响。对于混凝土坝通常坝顶最易遭到破坏，坝顶的过坝公路及非结构建筑，增加了破坏的可能性，因此在抗震设计时需要考虑坝顶动力放大效应和坝体高阶振型对坝头应力的影响。利用实测的地震加速度记录，对大坝进行抗震反应分析， 综合大坝地震应力分析来看，地震作用在坝踵处产生较大的拉应力，而坝趾附近的剪应力也较大。在刚度发生突变的位置及上下游坝面坡折部等易发生较大拉应力处，均为坝体的抗震薄弱部位。基于水库地震对大坝的影响，做好抗震设防是保障大坝安全的一个重要因素。

 Reservoir induced seismicity has been the important environmental problem affecting a dam safety, which can generate some extent damage to a dam. In this paper, taking the Xinfengjiang Reservoir induced seismicity and Koyna Reservoir induced seismicity for examples, we discussed the impacts of reservoir induced seismicity on the concrete dams. It can be seen that, for this kind of dams, the dam crest is the prone to damage position, additionally, the roads and the non-structural constructions on the crest increase the possibility of damage. Therefore, when one does the seismic design, the dynamic interaction and the effects of the higher order vibration modes on the stress of the dam crest should be taken into consideration. On the basis of observed seismic acceleration records, the seismic dynamic response analysis was done. It shows that the dam heel and toe are the areas of high tensile stress, and it is critical in the stress analysis of concrete dams, and that the stiffness mutation position and the breakthroughs of slope on the upstream face and downstream face are the weak regions of earthquake-resistant building. In summary, considering the various impacts of reservoir induced seismicity on dams, a good earthquake fortification is the key factor ensuring the dam safety.