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地震 ›› 2000, Vol. 20 ›› Issue (z1): 147-153.

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地电前兆场特性及有关地震预报问题探讨

汪志亮1, 王志贤2, 余素荣1, 李纲1   

  1. 1.中国地震局分析预报中心 ,北京 100036;
    2.河北省地震局 ,河北 石家庄 050021
  • 收稿日期:2000-05-08 修回日期:2000-06-05 出版日期:2000-09-30 发布日期:2022-09-23
  • 作者简介:汪志亮 (1937-) ,男 ,江西乐平人 ,研究员 ,主要从事地震地电前兆预报等研究。
  • 基金资助:
    中国地震局“九五”科研攻关项目 (95-04-03-03)

The features of the geoelectric precursor and the related issues in earthquake prediction

WANG Zhi-liang1, WANG Zhi-xian2, YU Su-rong1, LI Gang1   

  1. 1. Cen ter for Analysis and Prediction, CSB, Beijing 100036, China;
    2. Seismological Bureau of Hebei Province, Shijiazhuang 050021, China
  • Received:2000-05-08 Revised:2000-06-05 Online:2000-09-30 Published:2022-09-23

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摘要： 通过对大华北地区和西部地区地震活跃高潮期成组强震活动的孕震区域与地电前兆异常区的相关研究, 特别是唐山 7. 8级大震地电阻率无量纲信息量 (Rd) 随时间动态变化的研究 ,结果表明成组强震在孕震过程中与地电前兆场时、空、强有明显的关系。为地电前兆方法进行场的动态跟踪预报思路提供实践和理论依据。文中还详细地讨论了在日常监测预报工作中, 如何利用地电阻率趋势异常时间与未来地震震级、地电前兆异常区与地震孕育区域、地电阻率短临异常与临震预报等问题 ,取得了新的思路和有益的结果。

关键词: 无量纲信息量 (Rd), 地电趋势异常, 地电短临异常, 地电前兆特性, 动态分布

Abstract: The relationship between the areas with geoelectric precursors and the areas with group earthquakes in North China and western China is investigated in this paper, and the dynamic process of anon-dimensional parameter of ground resistivity (Rd) observed during Tangshan MS 7. 8 earthquake is analyzed. The result shows that the geoelectric signals could bring information regarding the time, location and magnitude of group strong earthquakes, which provides evidence for earthquake prediction. It is also described how to correlate the period of trend anomalies in ground resistivity with the magnitude of the future earthquakes; the abnormal areas with the seismo genic areas; and the short -term to imminent anomalies in geoelectricity with imminent earthquake prediction. That gives new ides and has got beneficial results in practice.

Key words: Non-dimension parameter of g round resistivity (Rd), Trend anomaly in geoelectricity, Short-term to imminent geo electric anomalies, Precursors in geoelectricity, Dynamic process

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