【摘要】 依据岩石强度的分形特性,导出了影响构造地震发生概率的表达式。研究结果表明,地壳损伤程度、断层长度、应力及拉应力轴与断层走向之间的夹角是影响构造地震的主要因素。其中,应力及拉应力轴与断层走向之间的夹角是导致地震发生的关键因素。在地震预测研究中,既要重视对地震危险区块内的应力大小变化的实时观测,亦要重视对地震危险区块内应力方向变化的实时观测。更多还原

【Abstract】 Based on the characteristic of rock strength,an expression of happening probability of influencing structural earthquake was derived.The results show that the main factors influenced structural earthquake are earth damage degree,fault length stress and an angle between extend stress axes and fault strike.Among those,the stress and an angle between extend stress axes and fault strikes is the key factor,which bring on a structural earthquake.In the research of earthquake forecast,continuous observation on the stress changes and the changes of stress direction should be sufficiently regarded in a danger region happening structural earthquakes.更多还原