淮南地震台电磁扰动异常分析

Analysis on abnormal data of electromagnetic wave of Huainan Seismic Station

2010年6月28日至8月20日淮南地震台电磁扰动低频1—20 Hz(二、三通道)出现较多脉冲,超低频0.01—1 Hz未出现明显变化。对脉冲的时间和空间特征进行分析,结果发现:自2008年观测以来,每年6—8月,二、三通道均有类似的脉冲增多变化。对电磁扰动日均值与淮南市日用电量荷载进行相关分析,发现淮南市用电量与电磁扰动第二、三通道具有准同步变化,其相关系数达0.9163。因此,6—8月的脉冲与用电量具有相关性,非地震前兆异常。

With the rapid development, electromagnetic disturbance becomes one of the important seismic means to monitor the seismicity, In this paper, We analysis the impulse data of electromagnetic wave abnormal in low frequency（1--20 Hz）, from the end of June to August, 2010. But there is no obvious anomaly in ULF（0.01-1 Hz）. First, we compared the current data with the historical. The results show that the impulses have been occurred in the data of low frequency from June to August every year, since the beginning of observation. 2008. Further, we researched the correlations between electromagnetic wave with load of electrical power. The research shows that the variation of that is synchronization. We calculate the correlation coefficient. It is high to 0. 9163. So we can say that the impulse is related the electrical power. That is not the premonition of earthquake.