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1966年3月发生的邢台地震属震群型,五次大于6级的强震基本上都发生在邢衡隆起区中强烈下降的束鹿断陷内。水准测量结果说明,在地震前、地震时及地震后,断陷区都有明显的下降运动。大地测量结果证明,邢台地震是一个右旋型水平错动为主、并伴有水平方向的引张和垂直方向的下降运动,呈现出张扭性断层错动模型。在二次主震或强震的中间,水准复测结果说明:在已发生强震的震中一带强烈下沉,而可能的未来强震区有较明显的上升。邢台地震在地面垂直运动方面,地震前后大致存在四个地形变阶段,并在总体上具有同向地形变特征。
The Xingtai earthquake occurred in March 1966 is of the earthquake swarm type. Five earthquakes larger than 6 occurred basically within the Beluk Fault depopulated strongly in the Xingheng uplift area. The leveling results show that there are obvious descending movements in the fault depression area before earthquakes, earthquakes and earthquakes. The geodetic results show that the Xingtai earthquake is a dextral horizontal fault mainly accompanied by horizontal dip and vertical descending motion, which presents a model of torsional fault fault. In the middle of the second mainshock or strong earthquake, the result of the level retest shows that there is a strong subsidence in the epicenter of a strong earthquake, and a more obvious rise in the possible future strong earthquake zone. In the aspect of the vertical movement of the Xingtai earthquake, there are roughly four deformation stages before and after the earthquake and generally have the same deformation characteristics.