唐山7.8级地震前张道口井流体异常的综合信息量

• 作 者: 刘寿臣 周锋 郑熙铭
• 机 构: 天津市地震局张道口水化实验室,天津市地震局张道口水化实验室,天津市地震局分析预报中心 天津300201
• 出 处: 华北地震科学
• 发表日期: 1996年04期
• 关键词: 地震异常 单井异常 地震预报研究 观测资料 前张 首都圈地区 观测井 国家地震局 观测项目 短临异常

多年来利用地下流体异常预报地震主要依靠的是单项观测资料(诸如地下水位或水氡含量等),随着地震预报研究的深入和监测技术的发展,开展单井多项观测和提取综合前兆异常已是面临着的新任务.本文据张道口井的多年多项流体观测资料,提出了单井流体异常综合信息量的计算方法.结果表明,在唐山7.8级和大同6.1级地震前该信息量均有明显的异常显示.

For many years, the earthquakes that make use of the anomaly of underground fluid anomalies mainly rely on single observation data (such as groundwater level or water radon content). With the advance of earthquake prediction and the development of monitoring techniques, a number of single well observations and comprehensive precursor anomalies It is a new task to be faced.According to many years of fluid observation data of Zhangdao well, a method to calculate the anomalous comprehensive information of single well fluid is proposed.The results show that before the Tangshan M8.1 earthquake and the Datong M6.1 earthquake, There are obvious abnormalities showed.