Citation

Rezaei S, Moghaddasi H, Darooneh AH. Chaos Solitons Fractals 2019; 29(6): e063114.

Affiliation

Department of Physics, University of Zanjan, Zanjan 45196-313, Iran.

Copyright

(Copyright © 2019, Elsevier Publishing)

DOI

10.1063/1.5090387

PMID

31266315

Abstract

Here, we introduce PageRank (PR) in a seismic network as an appropriate alarming clue before the occurrence of the event to be worthwhile in hazard probabilistic evaluation of earthquakes. Studying PR changes of two main shocks in Iran and Italy by means of temporal and spatial windows reveals that their PR values increase drastically before the event, while there is no trend for other considered locations and/or other time intervals. Therefore, the PR value seems to be an appropriate index of a place induction by previous events and its susceptibility for having a new earthquake. Moreover, summing over the PRs of areas close to the Italy event location and tracking this newly defined PR behavior show an increasing trend before the main shock implying that the close regions are influenced and become highly connected before the event as well as the earthquake location itself. It is also indicated that PR behavior is not necessarily correlated to the number of occurring earthquakes and is inherently the result of points connectivity and interactions.

Language: en