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阐述了黄陵地块内部北西向雾渡河断裂的几何学分段、运动方式和剩余形变特征，指出晚更新世以来雾渡河断裂可能较为稳定。在暂不考虑全断层同时滑破的前提下，分段计算各段潜在地震强度为５．０≤Ｍ≤６．０。
The section, movement mode and residual deformation of northwesterly Wudduhe fault in Huangling block are expounded. It is pointed out that the Wudduhe fault may be relatively stable since Late Pleistocene. Without considering the simultaneous failure of the whole fault and the simultaneous failure, the potential seismic intensity of each segment is calculated as 5.0≤M≤6.0.