Abstract: Electromagnetic emissions and its related effects preceding earthquakes are the new areas explored in the recent more than 20 years. This exploration may have great significance for human lives and development and has been received widespread attention of scientists in the field of earthquake prediction, geophysics and radio physics. Along with intense rock strain and rock bursting process at the late stage of earthquake preparation, mechanical-electrical energy conversion would appear in the seismogenic region and its nearby rock layers, which will correspondingly stimulate certain electromagnetic effects. The paper mainly analyzes the pre-seismic electromagnetic effect of ionosphere and proposes the method of monitoring VLF electric wave over the additional ionized region and so on. It is deemed that the method is of significance for short and imminent term prediction of strong earthquake.

Key words: mechanical-electrical conversion effect, electromagnetic effect, ionosphere, monitoring

摘要： 伴随着孕震后期加剧的岩石应变与破裂过程,孕震区及其附近岩层出现机-电能量转换,并相应地激发了某些电磁效应。文中主要分析了地震前的电离层电磁效应,提出了附加电离区的VLF电波检测等监测手段,对强震的短临预测具有较为重要的意义。

关键词: 机-电转换效应, 电磁效应, 电离层, 监测