元江水氡异常特征分析及短临指标提取
|
摘要
通过对元江水氡观测资料的分析,发现其在滇南及滇西南地震之前有很好的对应关系,是滇南及滇西南地区发生中强地震的一个敏感测项.其映震特征为:日测值成组的、大幅度的高值突跳,且5日均值出现长时间的超过1倍均方差线,同时伴随有井口翻花冒泡、流量增大等宏观现象.当元江井出现宏观异常现象后,一般均有至少2个5级以上地震发生或1个6级以上地震发生.
By Analyzing the observation data of Yuanjiang water radon,we found it has a very good corresponding relationship before the earthquake of south Yunnan and southwest Yunnan,and it is a sensitive material before the earthquake in south Yunnan and southwest Yunnan.It`s earthquake reflecting characteristics is:when the day average appears anomaly sudden jump in groups,and five day average more than 1 times average variance line for a long time,and accompanied macroscopic phenomena at the wellhead such as inverted flower bubbling and flow rate increases.When the wellhead appears macroscopic phenomena,there will be at least two ML≥5 or one ML≥6 earthquake generally.
By Analyzing the observation data of Yuanjiang water radon,we found it has a very good corresponding relationship before the earthquake of south Yunnan and southwest Yunnan,and it is a sensitive material before the earthquake in south Yunnan and southwest Yunnan.It`s earthquake reflecting characteristics is:when the day average appears anomaly sudden jump in groups,and five day average more than 1 times average variance line for a long time,and accompanied macroscopic phenomena at the wellhead such as inverted flower bubbling and flow rate increases.When the wellhead appears macroscopic phenomena,there will be at least two ML≥5 or one ML≥6 earthquake generally.
引文
[1]廖丽霞,王玫玲,陈莹.福建地区流体对2007年4次4级地震映震特征分析[J].地震,2009,29(2):123-132.
[2]张昱,刘小凤,常千军,等.大震前水氡同步异常变化及其预测意义探讨[J].地震研究,2010,33(3):253-258.
[3]孟晓春.地震信息分析技术[M].北京:地震出版社,2005.
[4]蒋骏,李胜乐,张雁宾,等.地震前兆信息处理与软件系统(EIS200)[M].北京:地震出版社,2000.
[5]国家地震局科技监测司,水文地球化学地震前兆观测与预报[M].北京:北京出版社,1992.
[2]张昱,刘小凤,常千军,等.大震前水氡同步异常变化及其预测意义探讨[J].地震研究,2010,33(3):253-258.
[3]孟晓春.地震信息分析技术[M].北京:地震出版社,2005.
[4]蒋骏,李胜乐,张雁宾,等.地震前兆信息处理与软件系统(EIS200)[M].北京:地震出版社,2000.
[5]国家地震局科技监测司,水文地球化学地震前兆观测与预报[M].北京:北京出版社,1992.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心