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地震 ›› 1998, Vol. 18 ›› Issue (4): 353-357.

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断层气co2测定新方法与张北-尚义6.2级地震预报①

林元武, 王基华, 高松升   

  1. 中国北京 100029 中国地震局地质研究所
  • 收稿日期:1998-04-27 修回日期:1998-06-12 发布日期:2022-09-23
  • 作者简介:林元武,男,1960年4月出生,副研究员,1985年6月获理学硕士学位,主要从事流体地球化学等研究工作。
  • 基金资助:
    ①中国地震局地质研究所论著（98C0009)

A NEW MEASUREMENT METHOD FOR C02 IN FAULT GAS AND PREDICTION OF ZHANGBEI-SHANGYI M6.2 EARTHQUAKE

Lin Yuarnvu, Wang Jihua, Gao Songsheng   

  1. Institute of Geology, CSB, Beijing 100029, China
  • Received:1998-04-27 Revised:1998-06-12 Published:2022-09-23

PDF (PC)

摘要： 简要介绍了断层气CO2快速测定法的特点,分析了近7年来在怀来后郝窑断层气CO2 观测点测得的9个4级以上地震的CO2前兆异常特征。张北-尚义地震前47天,断层气CO2出现突升异常,异常峰值是背景值的10倍左右,据此在震前12天对这次地震提出了较好的短临预报意见。

关键词: 断层气, 前兆异常, 短临预报, 张北-尚义地震, co2快速测定法

Abstract: A fast measurement method is introduced here for measuring CO2 in fault gas. The characteristics of CO2 precursory anomalies, which were observed in 9 earthquakes (M≥4) in Houhaoyao, Huailai county for last 7 years, are analyzed. Forty-seven days before the Zhangbei-Shangyi earthquake, an anomaly of abrupt increase in CO2 in fault gas was observed. The peek value of CO2 is about 10 times as the background value. Based upon the above-mentioned result, a relatively accurate short-term and impending prediction for the earthquake was made 12 days before it.

Key words: Fault product gas, Precursory anomaly, Short-term and impending prediction, Zhangbei-Shangyi earthquake, Fast measurement method for co2