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井水温度微动态观测越来越受到有关学者的关注，已成为我国地震地下流体动态观测的主测项之一。观测结果表明，无论是水温的正常动态还是震前的异常动态的形成，用传统的热传导或热对流机制难以给出合理解释。因此笔者根据观测到的事实、异常特征与同震效应等提出了水动力学机制，即含水层变形→含水层内孔隙压力变化→井－含水层系统内水流变化→井水温度的变化。
Micro-dynamic observation of well water temperature is more and more concerned by scholars, which has become one of the main measurement items of dynamic observation of underground fluid in China. The results show that it is difficult to give a reasonable explanation by the traditional heat conduction or convection mechanism, no matter whether the water temperature is normal or the anomalous formation before the earthquake. Therefore, the author proposed the hydrodynamic mechanism based on observed facts, anomalous features and coseismic effects, ie, the deformation of aquifer → the change of pore pressure in the aquifer → the change of water flow in the well-aquifer system → the change of well water temperature.