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本文据广义的应力—应变关系介绍了体积地震矩率和盆地体积变化概念、原理和方法,并用地震和地质两方面资料计算和分析了鄂尔多斯周边断陷盆地地震带不同时期的体积变化和体积矩率,盆地总的体积变化和现代地震矩率及所反映的体积变化是一致的,最后用地震矩率观点讨论本震区构造活动,平均构造应力释放水平和大震累积周期等问题,地震矩率和体积变化分析为我们据地质资料进行定量地震危险性分析提供了原理和方法。
In this paper, the concept, principle and method of volumetric moment of reverberation and volume change of basin are introduced according to the generalized stress-strain relationship. The volume change and volume moment of seismic zone in different periods of faulted basin around Ordos Basin are calculated and analyzed by using the data of seismic and geology. The total volume change of the basin and the modern earthquake moment rate and the volume change reflected are consistent. Finally, the seismic activity rate, the average tectonic stress release level and the accumulation period of the large earthquake are discussed by the moment of seismic moment. The seismic moment rate And the volume change analysis provide the principle and method for quantitative seismic hazard analysis based on geological data.