【摘要】 以伤口愈合理论为基础的地震矩比成像算法,把每次大震的能量按照一定的原则在其周围分配,分析地震矩比R值随时空变化的特征,从而找出地震矩比R值与强震的对应关系.本文以中国地震目录分别作分区、震源深度分析和记录完整性分析,应用调整了参数的地震矩比成像算法,分析了1966年以来中国不同地区7.0级以上地震前,震中及其周围R值对应的异常演化过程,发现通过分析R值异常的时空变化,能够定量化确定未来大震的空间范围和时间迫近程度.结果显示,R值的时空变化能够定量反映大震发生的时空要素,而且R值的变化特征能够反映介质破裂的规律.更多还原

【Abstract】 In the Moment-ratio Imaging algorithm, which is based on the theory of healing of a wound, the energy of each strong earthquake is distributed around the epicenter according to certain rules, and the features of the Moment-ratio value [WTHT]Rare analyzed as the space and time change, so that the relationships between the Moment-ration value R and strong earthquakes can be found. In the present paper, regions divided, hypocenter depths and events completed magnitude analyses were carried out in the Chinese catalogue. By applying the Moment-ratio Imaging algorithm in which the parameters are adjusted, the processes of anomaly evolution which correspond to the epicenter and the surrounding value Rbefore earthquakes of M≥7.0 since 1966 in different areas of China were analyzed. It was found that the range area and imminent time of a coming earthquake could be confirmed quantitatively by analyzing the abnormal temporal and spatial variation of the value R[WTBZ]. The results showed that the temporal and spatial variation of the value Rcould quantitatively reflect the temporal and spatial factors of a coming strong earthquake as well as the rule of medium rupture.更多还原