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利用遥感解译资料,结合研究区断裂分布特征、地震资料、地貌特征、地球物理场特征、第四纪沉积厚度及现代地壳形变等的综合研究,根据区域地震构造稳定性分区的基本原则,将研究区划分为活动区和相对活动区2个一级区,进一步可细分为4个二级带,即新沂—宿迁—泗洪活动带(Ⅰ)、扬州—仪征—南京比较活动带(Ⅱ1)、淮阴—洪泽—塔集比较活动带(Ⅱ2)、连云港—沭阳—泗阳比较稳定带(Ⅱ3),并且对各二级带的稳定性进行了评价。
Based on the comprehensive study of the remote sensing interpretation data and the fracture distribution characteristics, seismic data, geomorphologic features, geophysical field characteristics, the thickness of Quaternary sediments and the deformation of the modern crust in the study area, according to the basic principles of regional zoning stability, The study area is divided into two primary zones, ie activity zone and relative activity zone, which can be further subdivided into four secondary zones (Xinyi-Suqian-Sihong activity belt, Yangzhou-Yizheng-Nanjing comparative activity belt, Ⅱ1), the relatively active zone (Ⅱ2) of Huaiyin-Hongze-Tazi and the relatively stable zone of Lianyungang-Shuyang-Siyang (Ⅱ3). The stability of each secondary zone was also evaluated.