第四系地层对地震地表破裂的影响主要取决于第四系地层的土动力学性状、不均匀性和土层厚度等因素。
The main influencing factors of Quaternary layers contain the dynamic indexes of layers, uneven distributions of layers and the layers thickness.
讨论了华北平原周边1975年海城地震、1937年荷泽地震及1830年磁县地震3次强震的地表地震破裂特征以及这3个地区北西向断裂的全新世活动。
The characteristics of the surface fractures of 1975 Haicheng earthquake, 1937 Heze earthquake, 1830 Cixian earthquake and activity of Holocene faults in those areas have been discussed in this paper.
震区的地表地震变形主要表现为地震破裂、滑坡和地震断层三种形式。
The Surficial deformation caused by the earthquake is mainly expressed as earthquake fractures, landslides and earthquake faulting.
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