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有记载以来,山西境内发生了M≥6 3/4级的强震七次。笔者在深入研究历史地震资料的基础上,对每次强震的极震区、破坏区的长轴走向及其范围,震前几十年内较大区域内地表活动图象以及余震的空间分布进行了分折,得出每次强震的发震构造走向。由于七次强震均分布于新生代以来形成的断陷盆地之中,而盆地又广为第四纪黄土覆盖,所以通过卫片解释了盆地内隐伏发育的断裂,从而展示了应力集中的闭锁结构条件。最后讨论了这些强震之间的一些共性问题。
Since records have been taken, there have been seven earthquakes of magnitude M≥6 3/4 in Shanxi Province. On the basis of deeply studying the historical seismic data, the author analyzes the long axis and its extent of the severe earthquake area, the destruction area and the spatial distribution of the surface activity images and the aftershocks in the large area within a few decades before the earthquake The analysis shows that the seismogenic structure of every strong earthquake moves towards. Since the seven strong earthquakes are all distributed in the rift basin formed since the Cenozoic, and the basin is extensively covered by the Quaternary loess, the hidden development of the stress concentration in the basin is explained by the sag Structural conditions. Finally, some common problems between these strong earthquakes are discussed.