摘要
本文根据中国大陆地区强震分布的经向不均匀性,探讨了中国大陆Ms≥7.0级强震的时空分布及迁移特征。发现本世纪以来,大陆地区强震沿几条纬线呈带状分布;强震活动具有轮回性特征;各轮回中强震成幕地从南向北迁移;地震个体迁移总趋势和群体迁移方向一致,并具有循环性特征。
According to the nonhomogeneity of longitudinal distribution of strong earthquakes in China mainland, the author here discussed the characteristics of time-space distribution a.nd migration of strong shocks in China mainland. It is found that strong quakes take band distri-bution along several parallels since the beginning of this century; activities of strong earth-quakes are of cyclic characteristics; strong shocks in every cycle migrated from south to north episodically; the general tendency of individual event migration is consistent with the migra-tion direction of seismic colony and possesses circular behavior.
出处
《地震》
CSCD
北大核心
1989年第4期44-51,共8页
Earthquake
