The author utilizes catastrophe theory to explain the high magnitude mechanism by non - linear resonance model . 5 . in order to know the stress distributing of river , the author simulates the field by finite element analysis 为了合理解释水库蓄水后,地震频度增大、地震震级增大的现象,本文将非线性共振突变理论引入,对高震级水库地震的诱发机理进行了新的探索。