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从小震活动的时空分布以及测震学参数的变化出发,分析了泾阳地震前地震活动的异常特征。研究结果表明:泾阳MS4.8 地震前地震活动存在短期异常,但无明显短临前震活动。
Based on the spatiotemporal distribution of small earthquakes and the change of seismological parameters, the anomalous features of the seismic activity before the Jingyang earthquake are analyzed. The results show that there are short-term anomalies of seismic activity before the MS4.8 Jingyang earthquake but no obvious short-term precursor seismic activity.