澜沧江中段水利枢纽工程水库诱发地震的地震地质环境分析

Study on The Seismogeological Background of Dam-induced Earthquake of Major Dam along the Middle Segment of Lancang River1

主要从大地构造环境、地球物理场、新构造运动、构造应力场、主要活动断裂及地震活动性方面,论述了该区复杂的地震地质环境,结合目前对水库诱发地震的认识,认为构造因素是影响该区水库诱发地震活动的主要因素,水库诱发地震将主要发生在库区断层及其附近。

Based on the study on tectonics, neotectonics, geophysics, tectonic stress field and major active faults, the seismogeological background of major dam-along the middle segment of Lancang River is discussed in the paper. It is concluded that the seismogeological background of major dam along the middle segment of Lancang River is very complicated, the tectonics is the major factor of dam-induced earthquakes, the dam-induced earthquakes will mainly occurred along faults.