摘要
应用双向差分分析方法对青海地区 5级以上地震、中国大陆西部、南北带及全国范围内发生的 7级以上地震发生次数进行了计算 ,得到了该模型的理论预测结果 ;该方法对 5 0级以上中强震的长趋势判定有一定的作用。
The authors calculated the number of earthquakes ( M s≥5 0 in Qinghai province, M s≥7 0 in China) by the method of biaxial difference model,and got the theoretical forecast result,and this can help to forecast 1ong term tendency of moderately strong earthquake with M s≥5 0.