考查了1962～2010年间华北地区和江苏及邻区中强地震与地球自转加速度变化的统计关系。研究结果表明，大华北地区所有的强震(MS≥6.0)都发生在地球自转加速度上升期及其后半年时间内，并且63%的地震都发生在上升期开始4年之后。江苏及其邻区11次中强震(MS≥5. 2)中有10次发生在地球自转加速度上升期及其后半年时间内，并且64%的地震都发生在上升期开始后的3年10个月后。

The statistical relationship between moderately strong earthquakes in North China， Jiangsu and its adjacent area from 1962 to 2010 and the earth rotation acceleration has been investigated． The results show that all of the strong earthquakes ( MS ≥6. 0 ) in North China occurred in the rising period of earth rotation acceleration and its second half year． 63% of the earthquakes occurred in the rising period of 4 years after the start． 11 moderately strong earthquakes (MS≥5. 2) in Jiangsu and its adjacent area occurred in earth rotation acceleration's rising period，and 64% of the earthquakes occurred in the rising period of 3 years and 10 months after the start．