| Electromagnetic radiation anomalies before moderate and strong earthquakes |
| |
| 作者姓名： | 关华平 刘桂萍 |
| |
| 作者单位： | Center for Analysis and Prediction，State Seismological Bureau，Beijing 100036，China |
| |
| 摘 要： | Ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃｒａｄｉａｔｉｏｎａｎｏｍａｌｉｅｓｂｅｆｏｒｅｍｏｄｅｒａｔｅａｎｄｓｔｒｏｎｇｅａｒｔｈｑｕａｋｅｓ关华平，刘桂萍Ｈｕａ－ＰｉｎｇＧＵＡＮａｎｄＧｕｉ－ＰｉｎｇＬＩＵ（ＣｅｎｔｅｒｆｏｒＡｎａｌｙｓｉｓａｎｄＰｒｅｄ...
|
| 收稿时间： | 6 January 1994 |
| 修稿时间： | 21 July 1994 |
Electromagnetic radiation anomalies before moderate and strong earthquakes |
| |
| Hua-Ping GUAN and Gui-Ping LIU.Electromagnetic radiation anomalies before moderate and strong earthquakes[J].Acta Seismologica Sinica(English Edition),1995,8(2):289-299. |
| |
| Authors: | Hua-Ping GUAN and Gui-Ping LIU |
| |
| Institution: | (1) Center for Analysis and Prediction, State Seismological Bureau, 100036 Beijing, China |
| |
| Abstract: | Electromagnetic radiation observations have been developed since the 1976 Tangshan earthquake.Up to now,130 observatories have been set up in China.The present observation frequency ranges are ultra-low frequency 0.01-20 Hz and point frequency from 103 to 104 Hz.In the past 20 years,more than 40 earthquakes above M5.0 were recorded.By analyzing the earthquake examples,it is demonstrated that the distances between the anomalies recorded at observatories and the event were related with earthquake magnitude;the lasting time of anomalies are from several seconds to several ten days;during most of these events no electromagnetic radiation were observed simultaneously.In addition,the detail features of the electromagnetic radiation anomalies were discussed in this paper. |
| |
| Keywords: | electromagnetic radiation anomaly anomalous character |
| 本文献已被 CNKI SpringerLink 等数据库收录！ |
