【摘要】 从早期传说、水下遗迹、历史记载、现代测量等多个方面对中外历史上的大地震造成的陆地下沉灾害进行了综述,说明大地震与陆地下沉有非常密切的联系;并指出这种灾害现象有以下几个主要特点:①下沉主要发生在地震过程中;②下沉最严重的地区位于震中区;③越大的地震下沉区规模越大,可达上千乃至上万平方公里。根据这些特点判断,这种下沉应该属于地壳构造运动。更多还原

【Abstract】 Early legends,underwater relics,historical documents and modern measurements of land subsidence due to great earthquakes in history at home and abroad are reviewed.It is indicated that land subsidence is closely related to great earthquakes.Such kind of subsidence disaster is of flowing characteristics.The first,land subsidence occurs mainly during the seismic process.The second,the most severe subsidence takes place in epicentral area.And the third,the greater the earthquake is,the larger the subsidence area will be,which can be as large as thousands of square kilometers.From these characteristics,it is thought that this kind of subsidence is due to crustal tectonic movement.更多还原