苏06井不同深度水温变化特征与地震活动关系对比分析

COMPARATIVE ANALYSIS ON THE RELATIONSHIP BETWEEN THE CHARACTERISTICS OF WATER TEMPERATURE AND SEISMIC ACTIVITY IN SU NO.06 WELL

分析2008~2016年江苏06井2个不同深度(400 m、800 m)水温观测数据的变化异常,排除仪器故障、人为干扰及降雨等外在因素,与其周边的地震活动进行对比分析发现:不同深度的变化异常所对应的地震震中有明显的地域特征,400 m水温异常变化多对应郯庐断裂南段附近地区地震,800 m水温变化与苏北凹陷及凹陷的边缘地区地震活动相对应;不同深度水温异常变化幅度一般受地震构造方式的影响,与震级大小、距离关系不大。

Abnormal changes of water temperature observation data in No. 06 well in Jiangsu province from 2008 to 2016 in two different depth（ 400 m and 800 m）,excluding equipment failure,human disturbance and external factors such as rainfall,comparing with its surrounding seismic activity analysis,the results showed that the different epicentral depths of abnormal changes present obvious geographical characteristics,water temperature changes in 400 m depth are mostly corresponded the seismic activity in the region near the southern Tanlu fracture,water temperature change in 800 m depth are corresponded the earthquakes in northern Jiangsu sag and concave edge region; and the variation amplitude of water temperature in different depth is generally affected by the seismic structure,and they are not affected by the magnitude and epicentral distance.