THE RESEARCH ON GEOMAGNETIC LOW-POINT DISPLACEMENT ANOMALIES BEFORE THE M6.2 JISHISHAN EARTHQUAKE IN GANSU AND M7.1 WUSHI EARTHQUAKE IN XINJIANG
Geomagnetic observation is considered one of the important means of predicting strong earthquakes.Studying the correlation between strong earthquakes and anomalies in geomagnetic observation data and sum-marizing earthquake examples is crucial for earthquake prediction and prediction research.The geomagnetic low point displacement method was used to study the geomagnetic observation data produced by the National Geomagnetic Network Center,with a focus on the daily variation of the geomagnetic vertical component in the two months before the Jishishan M6.2 earthquake in Gansu on December 18,2023 and the Wushi M7.1 earth-quake in Xinjiang on January 23,2024.It is believed that there were two and three obvious geomagnetic low point displacement anomalies before the two earthquakes,respectively.The epicenters of two earthquakes were located near the intersection point formed by stacking the low displacement boundary on the same base map.Studying the location and time of strong earthquakes by utilizing the phenomenon of boundary intersection of geomagnetic low point displacement anomalies has scientific significance for short-term earthquake prediction.Of course,earthquake prediction is still in the exploratory stage,and no method can completely solve the prob-lem of earthquake prediction.The research results in this paper are also two typical examples of earthquake prediction using the low point displacement method.The paper also discusses the false report and missing re-port of strong earthquakes in Chinese Mainland using this method.
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万方数据
