The characteristics of earthquake networks based on k-core decomposition
Li Guangguang
Zhao Hai
He Xuan
Cai Wei
Zhang Ya
Pei Fandong
Abstract：According to the dynamical behavior of seismic activity and the spatio-temporal complexity of seismic system,this paper analyzed the seismic activities from the perspective of complex network.Using the solution based on space-time influence domain to construct earthquake network,a method of k-core de-composition was applied to the earthquake networks.The experiment result shows that the nodes in the highest layer cluster together.An important phe-nomenon is found that the strong quakes tend to occur at the location where the nodes in the highest layer are by analyzing their location information.What is more,the value of the highest layer will rapidly increase before a strong quake, then it will reach the maximum when a strong quake occurs,finally it will re-turn to a stable state.k-core decomposition of earthquake networks will provide a new way for us to analyze and research the seismological system.
Keywords：complex networkearthquake networkspace-time influence domaink-corethe highest layer
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 239-248 )