Periodic electromagnetic signals as potential precursor for seismic activity

作     者：YONG Shan-shan WANG Xin-an ZHANG Xing GUO Qin-meng WANG Jing YANG Chao JIANG Bing-hui 雍珊珊;王新安;张兴;郭琴梦;王晶;杨超;蒋冰慧

作者机构：Key Laboratory of Integrated Micro-Systems Science and Engineering ApplicationsPeking University Shenzhen Graduate SchoolShenzhen 518055China School of Electronics Engineering and Computer SciencePeking UniversityBeijing 100871China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2021年第28卷第8期

页      面：2463-2471页

核心收录：

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：Projects(KJYY20170721151955849 JCYJ20190808161401653)supported by Fundamental Research Grant from Shenzhen Science&Technology China 

主　　题：seismic precursor periodic electromagnetic signal Sunrise-Sunset(SRSS)waveform 

摘      要：Electromagnetic signals may be a promising precursor to seismic activity which has been observed in many case studies in past ***,the correlation and causation between the electromagnetic signals and the seismic activity are still unclear without intensive observation *** order to find seismoelectromagnetic phenomenon,we deployed AETA(acoustic and electromagnetic testing all-in-one system),a high-density multi-component seismic monitoring system in the China Earthquake Science Experiment site(CESE,in Sichuan Province and Yunnan Province,China)and the capital circle(areas with a distance which is≤200 km from Beijing),to record electromagnetic and geo-acoustic data across 0.1 Hz−10 *** the course of data collection,we discovered an electromagnetic waveform that occurs on a daily *** the signal generally coincides with sunrise and sunset,we named this phenomenon the SRSS(Sunrise-Sunset)*** conducting three statistical tests based on seismicity and SRSS,we determined that the SRSS waveform is roughly correlated with the onset of seismic *** generally occurs at the regions where seismicity *** discovery might have significant implications with respect to the future of earthquake prediction.