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地震 ›› 2007, Vol. 27 ›› Issue (增刊): 103-111.

• 电磁扰动研究 • 上一篇    下一篇

松山观测台地震短临电磁现象

李宁1, 杜学彬1, 谭大成1, 叶青2, 陈军营1   

  1. 1.中国地震局兰州地震研究所, 甘肃 兰州 730000;
    2.中国地震台网中心, 北京 100036
  • 收稿日期:2007-02-13 修回日期:2007-03-19 出版日期:2007-06-30 发布日期:2021-10-29
  • 作者简介:李宁(1974-), 女, 陕西蒲城人, 2004年在读硕士学位, 主要从事地震电磁现象等研究。
  • 基金资助:
    国家科技基础条件平台重点项目(2004DEA71000); 兰州地震研究所论文编号: LC20070017

Imminent electro-magnetic phenomenon related to earthquakes recorded at the Songshan Station

LI Ning1, DU Xue-bin1, TAN Da-cheng1, YE Qing2, CHEN Jun-ying1   

  1. 1. Lanzhou Institute of Seismology, CEA, Lanzhou 730000;
    2. China Earthquake Networks Centre, CEA, Beijing 100036, China
  • Received:2007-02-13 Revised:2007-03-19 Online:2007-06-30 Published:2021-10-29

摘要: 研究了1995年永登MS5.8地震、 2003年民乐-山丹MS6.1地震和1996年天祝西MS5.4地震前后天祝松山观测台地电、 地磁同场地观测数据, 结果表明在前2次强震前显示了地电、 地磁场波形“畸变”、 短周期扰动和显著电、 磁场谱系结构变化的短临信息; 讨论了地震地电场、 地磁场短临前兆的机理以及天祝西地震未显示异常的原因。 其研究结果对今后地震电磁观测台站的建设有一定实际意义。

关键词: 天祝地震空区, 电磁场, 背景变化, 前兆现象

Abstract: Studied the geoelectric and geomagnetic data observed at the Songshan station before and after the Yongdeng MS5.8 earthquake of 1995, the Minle-Shandan MS6.1 earthquake of 2003 and the Tianzhu west MS5.4 earthquake of 1996, the results show that the imminent geoelectric and geomagnetic information associated with the first two earthquakes are expressed as the waveform distortion, the short period disturbance and the prominent spectrum changes. Besides, the mechanism of the imminent precursor information and the reason why no anomaly appears before the Tianzhu west earthquake are explained. The research results in the paper will play an important role in the future building of the seismic geoelectric and magnetic station.

Key words: Tianzhu earthquake gap, Electric-Geomagnetic field, Background change, Precursor phenomenon

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