基于秭归罗圈荒微震群事件的时空分布、波形特征及震源机制解结果,分析了其成因。这次微震群属于冲击地压型矿震,与煤矿开采及回采工程活动有关,属于偶发的局部应力释放。
On the basis of the spatial and temporal distribution, waveform characteristics and results of focal mechanism solution of the micro-earthquake swarms in Luoquanhuang area of Zigui county, the cause of the earth-quakes are analyzed. The event is ore earthquake of rock burst type related to coal mine exploitation and mining activity, the micro-earthquake swarms belong to occasional local stress releasing.