地震“ULF”电磁扰动接收原理及异常特征

The record principle and anomaly features of ULF electromagnetic disturbance

经过多年辛勤的努力,地震预报取得了一定的进展,但具有实际意义的短临预报还有待解决。与地震相关的电磁异常现象近来被认为是一种有希望解决地震短临预报的有效方法。在宽频范围内已经积累了前兆信号事件,ULF现象是其中有效的方法之一,短期预报很有希望通过ULF方法来实现。本文主要介绍探测ULF电磁扰动方法的接收原理和异常特征。

Despite its extreme importance and years prediction still remains to be achieved of effort, practical short-term earthquake in future. However, earthquake-related electromagnetic phenomena are recently considered as a promising candidate for short-term earthquake prediction. There have been accumulated a lot of evidences of precursory signatures in a wide frequency range. The ULF geomagnetic change is one of the most promising phenomena and it suggests that the short-term prediction is expected to realize. The record principle and anomaly features of ULF electromagnetic approach are described in this paper.