Abstract
Abstract
According to the geological structure and observation characteristics of Baoji Seismic Station, a variety of methods are used to process and analyze the geo-resistivity data of Baoji Seismic Station from 2014 to 2018, such as the fourier sliding method that removing annual variation, the anisotropic degree method of the geo-resistivity, the normalized monthly rate method and the difference method. The analysis of these geo-resistivity data was used to extract the precursory anomalies of the geo-resistivity at Baoji Seismic station before the Jiuzhaigou Ms7.0 earthquake, obtain the characteristics of the changes in the geo-resistivity data before and after the earthquake, find the possible causes of the data changes, and evaluate the observation efficiency of the geo-resistivity at Baoji Seismic Station.
Reference11 articles.
1. Analysis of the authenticity of the data of geo-electric resistivity at Jiashan Seismic Station[J];Xin;Journal of Institute of Disaster-prevention Science and Technology,2011
2. Two types of changes in apparent resistivity in earthquake prediction [D];Du;Science in China (in Chinese),2010
3. Abnormal changes in geo- resistivity before the earthquake [J];Fuye,1982
4. The boundary element method for 3-D dc resistivity modeling in layered earth;Ma;Geophysics,2002