Citation

Abe S, Suzuki N. Physica A Stat. Mech. Appl. 2004; 337(1-2): 357-362.

Copyright

(Copyright © 2004, Elsevier Publishing)

DOI

unavailable

PMID

unavailable

Abstract

Discoveries of the scale-free and small-world features are reported on the network constructed from the seismic data. It is shown that the connectivity distribution decays as a power law, and the value of the degrees of separation, i.e., the characteristic path length, between two earthquakes (as the vertices) chosen at random takes a small value between 2 and 3. The clustering coefficient is also calculated and is found to be about 10 times larger than that in the case of the completely random network. These features highlight a novel aspect of seismicity as a complex phenomenon.