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地震 ›› 1999, Vol. 19 ›› Issue (1): 19-25.

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地下流体中短期异常与地震活动性指标

刘耀炜, 范世宏, 曹玲玲   

  1. 中国兰州 730000 中国地震局兰州地震研究所
  • 收稿日期:1998-06-17 修回日期:1998-07-24 出版日期:1999-01-31 发布日期:2022-09-19
  • 作者简介:刘耀炜,男,1957 年 7月出生.研究员,主要从事地下流体及地震预报等研究工作。
  • 基金资助:
    中国地震局“丸五”科研攻关项目,(95-04-01-01-07)

RELATIONSHIP BETWEEN THE MEDIUM-SHORT TERM ANOMALIES OF GROUND FLUID AND THE SEISMICITY PARAMETER

Liu Yaowei, Fan Shihong, Cao Lingling   

  1. Lanzhou Institute of Seismology, CSB, Lanzhou 730000, China
  • Received:1998-06-17 Revised:1998-07-24 Online:1999-01-31 Published:2022-09-19

摘要: 从地下流体前兆产生的机理出发,系统研究了地下流体中短期异常与地震活动性指标在空间和时间上的对应关系。研究结果表明:地下流体中短期异常点在空间上与地震空区、弱震条带、 b值异常区有明显关系;在时间上与小震活动频度和b值、η值等也有密切的联系,其结果对判定地下流体中短期异常具有一定的指导意义。

关键词: 地下流体, 地震活动性, 前兆分类, 中短期异常

Abstract: Based on the precursor mechanism of ground fluid, the corresponding relation in space and time between ground fluid anomalies and seismicity parameter are systematically studied. The results show that there is obvious spatial relation among the medium- and short term anomalies of ground fluid, seismic gap, weak earthquake belt and distribution of b value anomalies, and there is close temporal relation between the medium-and short term anomalies of ground fluid, minor seismicity frequency, band r; value. The results provide the basis that 1s of genetic significance for judging medium and short term anomaly indexes of hydrochemical parameter.

Key words: Ground fluid, Seismic activity, Precursor classification, Medium- and shortterm anomaly