关键词: 机-电转换效应, 电磁效应, 电离层, 监测

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