摘要
本文以黑龙江省1900年至1989年>4.5级地震,讨论了中强地震的发生律规及特征,指出:黑龙江省中强地震具有明显的周期活跃性,其发生的地震类型、震中位置、活跃时段、平静期长短等特征都具有"重现性".具有很高的中长期预报效能.这表明:地震是地球上发生的特殊自然现象,也具有"自然节律"的特征.
The activity feature of moderate earthquakes is discussed by seismic data (M >4.5) of Heilongjang province from 1900 to 1989 in this paper. The paper points out that moderate earthquakes of Heilongjan possess evident periodicity and quite good efficiency of medium term and long term earthquake prediction.
出处
《防灾减灾学报》
1991年第4期28-33,共6页
Journal of Disaster Prevention And Reduction
关键词
中强地震
中长期地震预报
Moderate earthquake
Medium term and long term earthquake prediction
