摘要
本文首先提出地震活动性增强度的概念及其计算方法、增强度异常的判据和指标,以及增强图象的编制方法。接着应用我国1980年以来的地震目录编制了我国1985、1986、1987年度地震活动性增强图,得出了11个明显增强区,3个持续增强区和一个增强区围限的平静区。应用1988年以来地震活动实况进行检验,效果良好,看来该方法可以应用于中期预报。
In this paper we suggested a conception of seismicity enhancement degree, it's calculating method, criterion and index for identifying it's anomalies and the method for ploting an enhancement map. The 1985, 1986 and 1987 seismicity enhancement maps are drawn by using the 1980 to 1-987 earthquake catalogues, with 11 enhancement areas, 3 continueous enhancement areas and 1 quiet area confined by the enhancement areas obtained. In most of these areas there were Ms ≥ 5.0 events occuring during 1988 and 1989. The results show that the seismicity enhancement degree and enhancement map can be used to do medium-term predictions.
出处
《地震》
CSCD
北大核心
1990年第1期23-29,共7页
Earthquake
