华南岛弧系统的近期活动

在新的地震活跃期中，台湾海峡７．３级地震和北部湾两次６级地震的发生，标志着华南弧岛系统相应了进入了强烈活动阶段，它们虽然都受控于太平洋板块（包括菲律宾海弧块）的西向挤压，但由于块体运动的主支与被动，作用力量级的不同和地质构造的差异而存在强度和诸多参数的差别。尽管如此，两处地震无疑都属于板内地震，利用它们和板缘地震的关系，可宏观地观测华南大陆的地震活动趋势。

RECENT ACTIVITY OF ARC-ISLANDS SYSTEM IN SOUTH CHINA

In the new period of seismic activity,the Taiwan strait earthquake occurred on Sep 16,1994 with magnitude 7.3 and two Beibuwan earthquakes occurred on Dec 31,1995 with magnitude 6.1 and Jan 10,1995 with magnitude 6.2 respectively,marked that the arc-islands system of south China iS enter into strongly active stage.Although these earthquakes all are controlled by the westwardpush of the Pacific Ocean plate(involve the Pillippine Sea plate), but their intensity and seismic parameters are different caused by the initiative or passive of plate motion,the magnitude difference of effort and the difference of geological structures.Even though, these earthquakes are belongs to the intraplate seismicity.Used the relationship between these of seismic activity in south China continent can be macroscopic prediction.