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地震 ›› 2002, Vol. 22 ›› Issue (1): 17-24.

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川滇地区地下流体中短期前兆识别和区域性特征

刘耀炜, 施锦, 潘树新, 曹玲玲   

  1. 中国地震局兰州地震研究所,甘肃兰州 730000
  • 收稿日期:2001-04-28 修回日期:2001-06-30 出版日期:2002-01-31 发布日期:2021-12-21
  • 作者简介:刘耀炜(1957-),男,河南洛阳人,研究员,主要从事地下流体、地震预报、软件设计等研究。
  • 基金资助:
    “九五”国家科技攻关项目(96-913-09-02-01-05)

Discrimination and regional features of medium-and short-term precursors of ground fluid in Sichuan-Yunnan region

LIU Yao-wei, SHI Jin, PAN Shu-xin, CAO Ling-ling   

  1. Lanzhou Institute of Seismology, CSB, Lanzhou 730000, China
  • Received:2001-04-28 Revised:2001-06-30 Online:2002-01-31 Published:2021-12-21

摘要: 系统分析了川滇地区地下流体中短期异常特征,给出有效识别这些前兆的方法,并用R值评分进行了效能评价。应用“九五”攻关对地下流体前兆的信息特征的研究结果,分析了川滇地区前兆的信息在时间上的阶段性、加速性及空间分布上的群体性和配套性特征,对四川和云南地区前兆的共性和差异性进行了分析,进而给出适合川滇地区的三要素预报指标体系。

关键词: 地下流体, 中短期异常, 前兆识别, 预报指标, 川滇地区

Abstract: In this paper, the features of medium-and short-term anomalies of ground flu-id in Sichuan-Yunnan region are systematically analyzed. Some methods fordiscerning these precursors are suggested and assessed by Rvaluation grading. Precursor information characteristics in Sichuan-Yunnan region, which shows precursory development by stages and acceleration in time, and shows swarming and assorting in space distribution, is ana-lyzed by using the re search results regarding information characteristics of ground fluid precursor in "Ninth Five-year Plan" key object. The common and different features of pre-cursors also are analyzed. The prediction indexsystem for three elements of an earthquake fitting to Sichuan-Yunnan region is presented.

Key words: Ground fluid, Middle-and short-termanomaly, Precursordiscrimination, Prediction index, Sichuan-Yunnan region

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