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地震 ›› 1998, Vol. 18 ›› Issue (3): 308-312.

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地磁场总强度空间线性相关在预报武定、丽江强震中的应用及机理

杜安娜   

  1. 中国北京 100036 中国地震局分析预报中心
  • 收稿日期:1997-05-14 修回日期:1998-01-06 出版日期:1998-07-31 发布日期:2022-09-08
  • 作者简介:杜安娜,女, 1945年1月出生, 副研究员, 主要从事地磁场及地震预报研究工作。

APPLICATION OF THE SPACE LINEAR CORRELATION OF THE TOTAL INTENSITY OF GEOMAGNETIC FIELD IN PREDICTING THE WUDING AND LIJIANG EARTHQUAKES AND THE THEORETICAL DEDUCTION

Du Anna   

  1. Center for Analysis and Prediction, CSB, Beijing 100036, China
  • Received:1997-05-14 Revised:1998-01-06 Online:1998-07-31 Published:2022-09-08

摘要: 介绍了地磁场空间线性相关的计算方法。详细阐述了利用此方法在预报武定地震(1995年10月24日, MS 6.5)及丽江地震(1996年2月3日MS7.0)中的应用。笔者对此方法进行了理论推导,结果表明相关参量与台站经纬度的选择有关,而地磁场的空间线性相关的规律与台站的经纬度选择无关。该结果对台组的选择起到了指导作用。

关键词: 地震预报, 地磁场空间线性相关, 理论推导

Abstract: In this paper, the calculation method of the space linear correlation of the geomagnetic field, and the statistic test and the error analysis have been introduced. This method was applied in predicting the Wuding earthquake with (MS= 6.5, on Oct. 24, 1995), and Lijiang earthquake with (MS= 7.0 on Feb. 3, 1996). The prediction was praised by the State Seismological Bureau. The theoretical deduction of this method has been made by the author. The result indicates that the correlation parameter is related with the selection of the longitude and the latitude of the stations, w hile the law of the space linear correlation of the geomagnetic field is not related with the selection of the longitude and the latitude of stations. This result can be used to direct the selection of the stations.

Key words: Earthquake prediction, Space linear correlation of the geomagnetic field, Theoretical deduction