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本文主要讨论与地壳屈曲有关的相关问题,它将依据地壳屈曲的结果,用找最不稳定位置的方法,说明地震活动呈条带、网络分布的可能原因,同时对相关地震的跨越分布和强震前兆灵敏点的不连续分布也作了力学解释。值得提出的是,从地壳屈曲导出的失稳优势方向分布与呈网络图象分布的唐山、海城、渤海等强震的发震构造其走向是一致的。这就部分地回答了,为什么在一不大的区域中,唐山—邢台一线上的强震发震构造为北东向,而海城—渤海一线上强震发震构造为北西向的原因。
This paper mainly discusses the related issues related to crustal buckling. Based on the results of crustal buckling, it will use the method of finding the most unstable position to explain the possible causes of the seismic activity in bands and network distribution. At the same time, Discontinuous distribution of seismic precursors sensitive point also made a mechanistic explanation. It is worthwhile to point out that the direction of the destabilization advantage derived from the crustal buckling is consistent with the seismogenic structure of the strong earthquakes such as Tangshan, Haicheng and Bohai which are characterized by the distribution of network images. This partly answers why a strong earthquake on the Tangshan-Xingtai front line is NE-trending in a small area, and the seismogenic structure of the strong earthquake on the Haicheng-Bohai line is NW-trending.