【摘要】 对中国大陆 1 9世纪末以来 ,M≥ 6.7成组强震活动的过程分析表明 ,可以将其活动水平分为三档 :高水平 ,中等水平和低水平强震活动期 ,它们分别对应每年平均发生大于 1 .2次、0 .6～ 1 .2次和小于 0 .6次的M≥ 6.7地震活动水平。活动过程的外推表明 ,2 1世纪的前 1 0年 ,中国大陆可能处于低水平的强震活动期 ,期中可能发生 5次 M≥ 6.7的强震 ,会造成严重的人员死亡更多还原

【Abstract】 The clustering strong earthquake activity (M S ≥6.7) in China′s continent since 1900 may be divided into three classes: high, middle and low activity levels, which respectively corresponds to 1.2 or more, 0.6 12 and 0.6 or less annual strong earthquake numbers on average. It is predicted that the first decade of the 21 century will be a low activity period of strong earthquakes in China′s continent, there will occur about five strong earthquakes and may cause larger death toll.更多还原