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| 1979年普洱6.8级地震前地磁异常现象 | |
| 引用本文： | 李琪,郭毅,周锦屏,朱培育,杨冬梅,陈化然.1979年普洱6.8级地震前地磁异常现象[J].震灾防御技术,2007,2(3):317-321. |
| 作者姓名： | 李琪 郭毅 周锦屏 朱培育 杨冬梅 陈化然 |
| 作者单位： | 1. 中国地震局地球物理研究所,北京,100081 2. 云南省宁洱县(原名普洱县)地震局,宁洱县,665100 3. 上海市地震局崇明地震台,上海,202164 |
| 基金项目： | 中国地震局地球物理研究所中央级公益性科研院所基本科研业务专项项目 |
| 摘 要： | 本文介绍了1979年3月15日普洱6.8级地震当天,在距离微观震中仅6.4km的磨黑镇,现场安装的陶瓷偏角磁变仪的磁系出现了异常大幅度摆动的事件,笔者从陶瓷偏角磁变仪的观测原理和地震当日的地磁场活动程度等方面,分析了造成这次异常事件的原因,并指出这种异常现象可能与地震前的震磁效应有关。 |
| 关 键 词： | 普洱6.8级地震 地磁异常 磁系摆动 |
| 收稿时间： | 2007/8/10 0:00:00 |
| 修稿时间： | 2007-08-10 |
The Geomagnetic Variation Observed Before 1979 Puer Earthquake (M_S=6.8) |
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| Li Qi,Guo Yi,Zhou Jinping,Zhu Peiyu,Yang Dongmei and Chen Huaran.The Geomagnetic Variation Observed Before 1979 Puer Earthquake (M_S=6.8)[J].Technology for Earthquake Disaster Prevention,2007,2(3):317-321. | |
| Authors: | Li Qi Guo Yi Zhou Jinping Zhu Peiyu Yang Dongmei and Chen Huaran |
| Institution: | 1 Institute of Geophysics, China Earthquake Administration, Beijing 100081, China ;2 Earthquake Administration of Ninger County, Ninger, Yunnan Province 665100, China ;3 Chongming Observatory, Earthquake Administration of Shanghai, Shanghai 202164, China |
| Abstract: | Unusual swing of the magnet of Chinaware Magnetic Declination Variometer (CMDV) was observed before the Puer Earthquake (MS=6.8) in 1979. The instruments being used are installed at Mohei Town which is only 6.4km away from the epicenter of Puer Earthquake. The principle of CMDV and the magnetic activity background level are introduced in this paper, and the unusual swing magnetic signal is believed to be the result possibly caused by the earthquake. |
| Keywords: | MS 6 8 Puer earthquake Unusual geomagnetic variation Swing of magnet |
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