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本文通过长江三峡地区的构造体系、深部构造、新构造运动和现代地壳运动的综合分析和论证,将该区划分出黄陵背斜核部稳定区、齐岳山断裂以西较稳定区及黄陵背斜周边较不稳定区等三类相对不同稳定程度的地区。这些地区,由于构造活动强度、构造部位特征、岩溶和裂隙发育、地热异常及温泉分布、河谷形态和谷底松软沉积复盖厚薄等因素的不同,水库诱发地震可能发生的地段和强度也是不相同的。通过上述因素的分析,庙河一奉节库段是今后水库诱发地震可能发生的地区,正好与黄陵背斜周边较不稳定区相吻合。
Based on the comprehensive analysis and demonstration of the tectonic system, deep tectonics, neotectonic movement and modern crustal movement in the Three Gorges area of the Yangtze River, this paper divides this area into the stable area of the Huangling anticline, the relatively stable area of the west of the Qyueshan fault, Slope around the unstable area and other three types of relatively different areas of stability. In these areas, due to different tectonic activities, tectonic features, karst and fissure development, geothermal anomalies and distribution of hot springs, valleys and thickness of loose sediments in the valley floor, the possible locations and intensities of the induced earthquakes in reservoirs are not the same . Through the analysis of the above factors, the Miaokou-Fengjie reservoir segment is likely to occur in the future reservoir-induced earthquakes, coinciding with the relatively unstable regions around the Huangling anticline.