It is a problem that to what extent the seismogenic environment will be affected by reservoir impounding and whether the delimiting scheme of potential focus and the seismic risk analysis should be adjusted.

• 摘要三峡水库蓄水对库首区孕震环境影响有多大，是否需要对潜在震源的划分方案及现行地震危险性分析方法做出调整、改进，是一个亟待解决的问题。