台湾花莲西南Ms7.6级地震对庐江台汤池1~#井地下流体的影响
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
介绍庐江综合观测井在1999年9月21日台湾花莲西南Ms7.6级地震的前兆异常及震时、震后效应。该井在这次地震的前兆异常的主要特点是:⑴溶解气体组分、水氡、井压等存在中期异常,异常时间都在3~4年;⑵水位和水温存在短临异常;⑶大部分测项震后效应明显;⑷水位和水温的震时和震后效应几乎同时出现,但却是逆向发展,为多年以来地下流体综合观测资料中所少见。
This article introduces the forewarning abnormity and during and after-shock effects of Lujiang observation well in the Ms7.6 earthquake happened on September 21,1999 in the south-west of Hualian in Taiwan.The main features of the forewarning abnormity of the earthquake are:(1) abnormity in the components of the solution gas,anomalous radon content in water and the well pressure anomaly,the anomaly period is about three to four years;(2) short term abnormity concerning the water level and the water temperature;(3) most of the observation objects show obvious after-shock effects;(4) during and after-shock effects of the water level and the water temperature appear almost at the same time,but develop towards opposite directions,which is seldom seen in the subsurface flow observation data.
引文
[1]张朝明,丁守英,余华扬等.大震前地下流体的远场中期异常[J].地震,1998(2):141-145.
    [2]车用太.地下水动态映震理论与预报地震方法[J].地震,1990(6):19-25.
    [3]吴锦秀,赵成梁.应变-渗流基本规律与地震前兆[J].地震,1988(4):4-14.
    [4]李献智.对地震前兆异常的一些再思考[J].地震,1998(2):163-169.

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