摘要
本文初步系统分析了云南地区1965年至今40次M_s≥5.0级地震前后震源及近震源区弱震活动的时空分布过程,发现约2/3的主震前存在地震活动空区现象;利用弱震活动空区某些特征给出了预测未来主震的统计关系,从而将空区直接应用于云南常规地震预报监视中。
This paper analyzed primarily and systematically the time-space distribution process of weak shocks in and nearby source areas around 40 earthquakes MS≥5.0 in Yunnan province since 1965 and found that there existed seismicity gaps before two-thirds of mainshocks. The statistic relation for predicting future mainshocks is given using certain features of seismicity gaps of weak shocks, thus the gap has been directly applied to the routine earthquake prediction and monitoring in Yunnan province.
出处
《地震》
CSCD
北大核心
1991年第4期35-42,共8页
Earthquake
