台湾海峡构造地貌与地震活动特征研究

本文对海峡25年来地震资料作了系统总结,发现海峡地震具有北弱南强,北稀南密,地震密集区沿两侧滨海断裂带及横向开启褶皱二个方向有规则展布等特征。提出地震受纵向断裂带及横向开启褶皱等控制,海峡中南部的地震主要是南海地块北推作用产生的。

Research on the Features of Tectonic Landform and Seismic Activity in Taiwan Strait

In this paper, we summarized the seismic data of Taiwan strait in the last 25 yean. It was found that the earthquakes in the strait possess the features which were weaker and seldom in the northern strait, whereas it was stronger and density in the southern strait. The seismic dense regions extended regularly along the two directions which one is two sides of the shore fault zone, another is the lateral open fold zone. It was presented that the earthquakes were controlled by the longitudinal fault zone and the lateral open fold zone as well as the eqrthquakes in the middlesouthern strait were controlled by the northern-driving action of the southern sea land-mass.