濮阳地震集中区地震精定位及其预测意义

Fine positioning for the earthquakes in Puyang concentrating area and its significance in earthquake prediction

运用双差定位方法对濮阳地震集中区进行地震精定位,利用重新定位后地震的三维空间分布,对山东鄄城、河南濮阳交界地区出现的中小地震集中增强过程进行分析,并结合该区地震构造背景和投入开发油田的分布情况,对该集中区的地震活动成因进行综合分析。最后讨论了该区地震重新定位对于未来地震趋势判断的实际意义。

The earthquakes in Puyang concentrating area are fine repositioned with Double-Difference Method. The concentrating and enhancing process of medium and small earthquakes in Shandong Juancheng and Henan Puyang is analyzed with the repositioning results. Combined with the seismotectonics and oil field distribution, the cause of seismic activity in the concentrating area is discussed. The results show that the relocation of earthquake has is significant to the prediction of earthquake tendency.