【摘要】 通过对郯庐断裂带构造进行分段分析,着重研究了1668年7月25日郯城大地震的背景、发震成因和震前异常,并对郯庐断裂带地震活动进行回顾,对比分析近年该带中南段地震活动图像、应力场特征,对郯庐断裂带南段地震活动特点进行探讨。更多还原

【Abstract】 The Tanlu fault zone tectonic segmentation is analyzed,especially the background,precursory anomalies and the causes of the earthquake on the July 25,1668.The seismicity and the stress features of middle-south region of the Tanlu fault,and the characteristics of south region of the fault is discussed in the paper.更多还原