地下流体在地震孕育和前兆形成过程中起到重要作用,因此研究地下流体对地震预报至关重要。然而,由于对地震孕震环境和发震机制缺乏深入系统的认识,导致无法根据地表观察到的异常现象准确预测地震。近年来,随着地球物理、地球化学和地质学研究的不断深入,人们对地下流体有了更多新的认识,本文通过对相关研究成果的收集和总结,介绍地下流体研究的几种经典模型,分析了地下流体在地震过程中的主要作用,并探究流体前兆形成机制。研究工作对提高地震预报水平具有一定的借鉴和参考意义。

Underground fluid plays a crucial role in earthquake generation and precursor formation. Therefore,it is crucial to study underground fluid for the purpose to improve the earthquake prediction level. However,due to the lack of comprehensive understanding of the seismogenic environment and earthquake mechanism,it is nearly impossible to accurately predict the occurrence of earthquake based on the abnormal phenomena observed on the surface of earth. With the development of geophysics,geochemistry and tectonic geology studies,knowledge about underground fluid has been obtained. In this paper,based on the collection of relevant previous research results,we summarized several classical theoretical models,studied the main role of underground fluid played in the earthquake generation,and investigated the formation mechanism of underground fluid precursor in earthquake prediction. The research work has a reference significance for improving the level of earthquake prediction.

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