Abstract: Considering the incompleteness of present seismic catalogs and the Poisson occurrence of earthquake validity of doubly truncated G-R relation, we improve the method for estimation of the seismic moment rate by using historical and contemporary and even archeological earthquake data. The seismic moment rates of several seismic zones in southwest China is calculated and compared with geological data. The results indicate the proposed method is feasible and practical.

Key words: Seismicity, Seismic moment rate, Southwest China

摘要： 在充分考虑现有地震资料的不完备性和震级服从两端截去泊松分布的条件下,建立了用历史地震资料和现代地震资料及考古地震资料计算地震矩年变化率的方法。计算了西南地区几个地震带的地震矩年变化率,并与地质资料得到的结果进行了比较,结果表明该方法是切实可行的。

关键词: 地震活动性, 地震矩年变化率, 西南地区