Predicting Earthquake by Electromagnetic Fields Fluctuation
In recent years powerful earthquakes struck off Southeast Asia such as the 2004 Indian Ocean earthquake that caused massive tsunami, the Wenchuan Earthquake in Sichuan of May 12, 2008 that killed more than sixty thousands people.Earthquake prediction is still an unsolved problem for human beings. No effective tools or techniques of earthquake prediction have being built so far.In this article we will discuss a method to predict earthquakes by electromagnetic fields fluctuation. We deem that earthquake occurs while the hot magma breaks strata. Based on thermal radiation, hot magma will emit electromagnetic radiation. The electromagnetic fields fluctuation in the area that hot magma is active is much stronger than that from other inactive areas. This means that the electromagnetic fields fluctuations from possible earthquake range are uncorrelated with the fields from areas with no earthquake. So, firstly, we can setup a network of Magnetotelluric stations, and record electromagnetic fields fluctuation with proper sampling rate with instrument systems such as V5-2000 which incorporates the GPS time in the data. Secondly, compute a reference fluctuation from some stations which are located in stable areas such as the basin. Next, compute the each sites correlation coefficient with the reference fluctuation. Finally, a contour map of the correlation coefficient tells where the earthquake may occur.
Earthquake Prediction Electromagnetic Fields Fluctuation correlation analysis
CHEN Qingli
School of Geophysics and Oil Resources, Yangtze University
国际会议
The 19th International Workshop on Electromagnetic Induction in the Earth(第十九届国际地球电磁感应学术研讨会)
北京
英文
176-179
2008-10-23（万方平台首次上网日期，不代表论文的发表时间）