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2003年三峡水库蓄水后,库区地震活动增加了,而且和水位有比较明显的相关性。但是水库诱发的地震,99%以上都是0.5~1级的小震,最大地震是2013年12月16日发生在巴东县的5.1级地震。经专家初步判断,水库地震的活跃期已过,最大震级将不会超过论证时预测的5.5级。库区地震活动统计三峡工程蓄水后,库区地震活动频次比蓄水前明显增强,地震强度主要以微震和极微震(震级<3.0级)活动为主。地震
After the impoundment of the Three Gorges Reservoir in 2003, the seismic activity in the reservoir area has increased, and there is a clear correlation with the water level. However, more than 99% of the earthquakes triggered by the reservoir are small earthquakes of 0.5 to 1 magnitude. The largest earthquake is the 5.1-magnitude earthquake that took place in Badong County on December 16, 2013. The initial judgment by the experts indicates that the active period of the reservoir earthquake has passed and the maximum magnitude will not exceed 5.5 as predicted by the demonstration. After the Three Gorges Reservoir was charged by seismic activity statistics in the reservoir area, the frequency of seismic activity in the reservoir area was significantly enhanced compared with that before water storage. The seismic intensity was mainly dominated by microseismic and microseismic (magnitude <3.0). earthquake