Different coseismic response phenomena occurred on water level of No.10 and No.11 well in Xinjiang Hutubi earthquake with MS6.2 on December 8th, 2016.This paper analyzed charac-teristics of the two wells' coseismic response from correlation of water wave and seismic wave signal, and on this basis, estimated the permeability coefficient of No.10 and No.11 well observing in this aquifer earthquake, discussed the coseismic response mechanism.From seismic energy density, co-seismic response amplitude and magnitude, epicenter distance angle of the two wells earthquake re-flecting ability were analyzed, results showed that:(1) The coseismic response of No.10 well was mainly reflected by the oscillation of water level, while No.11 well was characterized by a large slow rise in water level.(2) Energy density of coseismic response of triggering water level of No.10 well was smaller than that of No.11 well, which was more likely to trigger coseismic changes, and the linear relationship among magnitude of water level change , magnitude and epicentral distance of No. 10 well was better than that of No.11 well.( 3 ) Coseismic response mechanism of the well water level was more complicated, and water level data of high sampling rate was the basis for the quanti-tative analysis of coseismic response characteristics of water level, as well as the guarantee of obtai-ning accurate results and understanding.%新10井、新11井水位对2016年12月8日新疆呼图壁MS6.2地震表现出不同的同震响应现象.从水震波与地震波信号的相关性对比分析了这两口井的同震响应特征,从水文参数、地震能量密度、同震响应幅度与震级、震中距关系等方面分别对这两口井的映震能力进行了对比分析.结果表明:(1)新10井同震响应形态主要表现为井水位的振荡变化,新11井主要表现为井水位的大幅度缓慢上升.(2)新10井触发水位同震响应的能量密度小于新11井,更易触发同震变化,且新10井水位的变化幅度与震级、震中距的线性关系优于新11井.(3)井水位的同震响应机理较为复杂,高采样率的水位数据是定量分析水位同震响应特征的基础,也是获得准确结果与认识的保障.
展开▼
