摘要
2016年10月20日在江苏盐城市射阳县发生4.4级地震,研究发现在该地震前中国大陆华东地区的部分地磁台垂直分量日变形态出现过"双低点"异常,在分界线两侧低点时间超过2h。不少学者研究发现地磁"双低点"的出现与地震的孕育和发生相关。
On October 20,2016,an earthquake of magnitude 4.4 occurred in Sheyang County,Yancheng City,Jiangsu Province.Before the earthquake,the "double low-points" anomaly in daily variation of vertical geomagnetic component was observed in some magnetic observatories in East China.The period of low points on both sides of the dividing line was more than 2 hours.Some scholars have found that the occurrence of geomagnetic "double low-points" is related to the generation and occurrence of earthquakes.
作者
郭明瑞
胡久常
吴佳林
郭昱琴
王桂丹
王锡娇
GUO Mingrui;HU Jiuchang;WU Jialin;GUO Yuqin;WANG Guidan;WANG Xijiao(Earthquake Agency of Hainan Province,Haikou 570203,Hainan,China)
出处
《地震工程学报》
CSCD
北大核心
2018年第A01期101-104,共4页
China Earthquake Engineering Journal
关键词
地磁垂直分量
日变
"双低点"异常
预测
地震
geomagnetic vertical component
diurnal variation
"double low-points"anomaly
predicting
earthquake
