【摘要】 强震短临阶段前兆异常的共性特征是"一多、二大、三广、四平静"。通过讨论"一多、二大、三广"这三项微观前兆异常特征的物理基础,提出用"软包体模型"和信息论中系统处于临界点附近时信息会突然增强的理论,可以对上述共性特征做出解释。更多还原

【Abstract】 The precursor anomalies in short-term and impending-earthquake period of a strong earthquake have common characteristics as follows:(1)the number of precursor anomalies is more than before;(2)the change amplitudes of some precursor anomalies are larger;(3)the distribution of precursor anomalies is wider;(4)the earthquakes(M≥4)are quiescent in a quite wide region.The first three characteristics are microcosmic precursor anomaly characteristics;we discussed their physical bases in this paper.We think the soft inclusion model and the theory of information increasing abruptly while the system has been at a critical point can explain these common characteristics.更多还原