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.
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June 2019
Research Article|
June 20 2019
PageRank: An alarming index of probable earthquake occurrence
Soghra Rezaei;
Soghra Rezaei
a)
1
Department of Physics, University of Zanjan
, Zanjan 45196-313, Iran
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Hanieh Moghaddasi;
Hanieh Moghaddasi
1
Department of Physics, University of Zanjan
, Zanjan 45196-313, Iran
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Amir Hossein Darooneh
Amir Hossein Darooneh
1
Department of Physics, University of Zanjan
, Zanjan 45196-313, Iran
2
Department of Applied Mathematics, University of Waterloo
, Waterloo N2L 3G1, Canada
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a)
Author to whom correspondence should be addressed: [email protected]
Chaos 29, 063114 (2019)
Article history
Received:
January 27 2019
Accepted:
May 30 2019
Citation
Soghra Rezaei, Hanieh Moghaddasi, Amir Hossein Darooneh; PageRank: An alarming index of probable earthquake occurrence. Chaos 1 June 2019; 29 (6): 063114. https://doi.org/10.1063/1.5090387
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