福建省沿海大陆边缘的断块构造和1604年泉州海外大震的孕育

福建省沿海断块构造发育,新构造期以来,大致以闽江和九龙江为界,可分为南、北、中三个断块差异活动区。本文分析了震前各种现象,对这次大震的孕育过程进行了阶段性划分,并对该区的应力作用方式作了分析。

THE FAULT-BLOCK STRUCTURES ALONG THE FRINGE OF COASTAL CONTINENT IN FUJIAN PROVINCE ANC THE PREPARATION EOR THE QUANZHOU BAY EARTHQUAKE IN 1604

The fault-block structures are well developed in the coastal area of Fujian province. The boundary of the area is the Minjiang River and the Jioulong River. The differential movement of fault-blocks since neotectonic period may be divided into three regions, i. e. thenorthern, the southern and the middle. The preparation for 1604 Quanzhou earthquake is considered to be conform to the combinatorial model theory. The middle fault-block is corresponding to its accumulation unit of stress, the northern and southern fault-blocks are corresponding to its adjustment units of stress. They have quite different respectively. The preparation process of the earthquake is divided into several periods, and the patterns of stress effect and analyzed.