地震裂缝（earthquake fissure）是指地震在地面上所造成的没有明显位移的裂隙。
本文以调查资料证实了安徽嘉山史前地震裂缝的存在，并初步分析了其力学特征。
In this paper the Paleo-seismic frectures of Jiashan county, Anhui, is confirmed by the investigated data and the mechanical feature of frectures was first analysed.
此外，作者强调研究土石坝的粘土心墙或斜墙地震裂缝的重要性，并对这个问题的研究方法提出建议。
Besides, the author emphasizes the importance of studying seismic crack of clayey core or apron, and proposes a procedure for studying this problem.
1556年华县大地震，在渭南市区产生了大量的地震裂缝，研究与工程实践表明，这些裂缝遗迹目前已处于稳定状态。
A great of seismic fractures were produced by the major earthquake in Hua county in 1556.
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