丹江口库区本底地震与水库地震趋势分析

摘要

This article from the Danjiangkou reservoir tectonic earthquake started,summed up from 143 BC to the end of 2008,seismic activity,the analysis of the water reservoir in the early stages of reservoir induced earthquake activity and intensity,and the causes analyzed and discussed the Danjiangkou reservoir capacity added stress state influence on reservoir water reservoir,discusses the reservoir and its surrounding areas may induce seismic reservoir area and strength. It was found that the Chinese library Danjiangkou reservoir induced earthquake is unlikely. And Dan library may induce earthquakes,its strength should M ≤ 5.0. Mainly induced seismic hazard zone is still Dan Library Song Bay-Off Anti beach canyon terrain library segment and Lin Maoshan -Liangshuihe areas.%从丹江口库区地震地质构造着手，总结公元前143年至公元2008年本底地震活动情况，分析在初期蓄水阶段水库诱发地震活动情况、强度及成因。讨论丹江口水库增容后，新增库水对库区的应力状态影响，探讨库区及周缘地区可能诱发水库地震的区域及强度。结果发现，丹江口库区中的汉库诱发地震可能性不大。而丹库可能诱发地震，其强度应在 M ≤5.0。主要诱发地震危险区仍在丹库宋湾—关防滩峡谷地形库段和林茂山—凉水河地区。