【摘要】 针对地震系统表现出的时空复杂性,提出一种基于时空影响域的地震网络构造方法,根据震级的大小确定地震在时间和空间上的直接影响范围.实验结果表明,所提方法构造的地震网络在不同时间跨度下均表现出稳定的无标度特征,幂指数在1到2之间,节点的出入度呈现正相关性;网络的平均聚集系数在大地震来临之后迅速增大,然后随时间推移逐渐减小,最终恢复平稳;通过地震数据所构成的基于时空影响域的网络表现出一定的统计规律,可以帮助分析地震系统的内在联系.更多还原

【Abstract】 A construction method based on time-space influence domain for earthquake network was put forward for the seismic complexity in time-space.The range of direct effect was determined according to the magnitude of earthquake.The results showed that the proposed earthquake network,in which the power exponent was between 1 and 2,was scale-free in different time spans.And there was a positive correlation between in-degree and out-degree of nodes.The average clustering coefficient increased quickly after main shocks,then decreased gradually as time went on and finally stayed stationary.The earthquake networks based on timespace influence domain,which presented certain statistical laws,could help scientists to analyze the internal mechanism of seismic system.更多还原