福建水位观测网对印度尼西亚8级巨震的响应特征分析

The characteristic analysis of response to the M 8 large earthquake of Indonesia of water level network of Fujian Province

分析了福建水位观测网对2004年和2005年2次印度尼西亚(以下简称印尼)8级巨震的响应情况,结果表明福建水位观测网能够记录和反映远大地震事件,响应的时间分布、空间展布、幅度大小、变化形态均同构造密切相关;同时指出,水井对远震的响应特征不但同水井的构造位置有关,还同水井的井孔结构、水文地质条件等因素有关。现有的数据库应进一步完善,增加水井的井孔结构、构造地质、水文地质等基础背景资料,才能更好地进行地震监测。

In this paper, the analysis on the response to the 2 times Indonesia M 8 large earthquakes in 2004 and 2005, respectively, in water level network of Fujian Province is presented, the result states the water level network of Fujian Province can record and reflect the far large earthquakes, and the reflect in the time, the space, the change size, the variety appearance all closely related to structure position. It also point out that the response character not only correlate with structure position of the water-well but also both correlate with the bore struc- ture of water-well and geologic environment. The existing database should be improved. Some foundation background data such as the water-well bore structure, structure geology, the hydrogeology etc, should be increased into the database. And then we can carry on better earthquake monitor.