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1932年麻城黄土岗6级地震,是湖北省史载上的一次破坏性地震,宏观调查结果:震中烈度Ⅷ°强,有感半径远及 120公里;极震区面积 84平方公里,长轴方向呈 N35°E。 宏观调查及地质考察表明,此次地震与北北东向一组枢纽断层的强烈活动有关,该组断层所夹持的块体——鹰山尖有明显的隆起异常,因而确定其为本次强震的发震构造。该组断层与麻城——团风断裂带属同一断裂系统。前者受后者控制。 根据宏观、微观资料分析得出:1932年黄土岗地震之后,麻城——因风断裂带的活动减弱;无论在团风还是麻城一带,近期均不可能有大于5级的地震发生。
The Macheng Loess M6 earthquake in 1932 was a devastating earthquake in Hubei Province. The macroeconomic findings were as follows: The epicenter intensity was Ⅷ ° strong with a sense of radius as far as 120 km; the area with a maximum seismicity of 84 km2 and the long axis direction N35 ° E. The macro-investigation and geological survey show that the earthquake was related to the intense activity of a series of North-East-to-East hinge faults, and the Block Yingjian pointed by this fault has obvious uplift anomaly, so it is determined to be this time Seismogenic structure of strong earthquakes. The fault and Macheng - Tuanfeng fault zone belong to the same fault system. The former is controlled by the latter. According to macroscopic and microscopic data analysis, it is concluded that the activity of Macheng-Yinfeng fault zone weakened after the Huangganggang earthquake in 1932, and the occurrence of earthquakes larger than 5 is unlikely to occur in both the Tuanfeng and Macheng areas in the near future.