【摘要】 对 1971— 2 0 0 0年间川滇地区 ML≥ 2 .5地震资料进行地震活动因子 A值的空间扫描 ,结果表明 :川滇地区 80 %的 MS≥ 6地震前 1— 2年 ,在未来震中周围有 A值异常出现。用 R值对其进行评分 ,可以通过检验。通过与华北地区的部分结果进行比较 ,对两个区域地震孕育过程中的差异进行了讨论更多还原

【Abstract】 The seismicity factor value-A was calculated based M-L≥2.5 earthquake data in Sichuan and Yunnan in 1971-2000, and corresponding spatial varying patterns of value-A were given. It is shown that value-A anomalies appeared near the epicenters 1-2 years before the 80 percent of the M-S≥6 events in the research area. The prediction result of value-A was marked by value R, which passed the test. The research result was compared with some results from the North China, and the difference of the seismogenic processes in these two areas was discussed.更多还原