【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。更多还原

【Abstract】 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.更多还原