四川深井水位记录昆仑山8.1级地震

Relationship between groundwater level change in Sichuan and the 2001 Kunlunshan Pass M 8.1 Earthquake

昆仑山 8 1级地震在四川省地震地下水观测网中引起了大多数深井水位记录的大幅度波动 ,数字化水位仪LN - 3和大多数浮子式机械水位仪SW4 0 - 1均记录到水震波。同一口井两种不同仪器水震波的记录结果有差异 ,相邻井的记录不同。同震阶变结果表明除北部受张应力外主要受压应力。地震还引起了红旗水库水体冒泡、起大旋涡、库水东西对流的现象。

The fluctuated changes of the groundwater level,caused by the 2001 Kunlunshan Pass 8.1 Earthquake,are recorded by most of groundwater level meters in Shchuan province.But there are some differences of amplitude between two digital meters(Model LN-3 and SW40-1)that are located in same well.The step changes show that most tectonic blocks,except northern blocks of Sichuan province,are clamped by the normal stress.This huge earthquake caused Hongqi reservoir to emit gas,to eddy and to flow from the east to the west.