大陆中、强地震地电阻率临震突变及其时空分布讨论——短临地震预报研究

ON SUDDEN CHANGE OF THE EARTH RESISTIVITY PRECEDING THE MODERATELY STRONG OR STRONG EARTHQUAKE IN CHINA CONTINENT AND ITS TEMPORAL-SPATIAL DISTRIBUTION——A SERIES OF STUDIES ON THE SHORT-TERM AND IMPENDING EARTHQUAKE PREDICTION

本文研究了我国大陆部分中、强地震前地电阻率变化,得到地电阻率临震突变是我国大陆中、强地震前能观测到的一种客观电现象;讨论了地电阻率临震突变的变化特点、变化形态和时、空间分布特征。 本文认为地电阻率临震突变主要是临震前震源区孕震造成地电台勘探体介质湿度发生变化而引起的。

This paper studied the change of earth resistivity (ps) recorded before part of the moderately strong or strong earthquakes in China continent, and found that he sudden change of earth resistivity is an objective electric phenomenon, which could be recorded immediately before the moderately strong or strong earthquakes in China continent. The paper also discussed the variation features of the sudden change of earth resistivity as well as the shape of sudden change and its temporal-spatial distribution.It is considered that the impending sudden change of earth resistivity preceding a moderately strong or strong earthquake might be caused by the change of the humidity in the exploration medium around the geoelectrical stations due to the earthquake preparation in a focal area immediately before the earthquake occurrence.