Non-universal critical exponents in earthquake complex networks
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Pastén, Denisse
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Non-universal critical exponents in earthquake complex networks
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The problem of universality of critical exponents in complex networks is studied based on networks built from seismic data sets. Using two data sets corresponding to Chilean seismicity (northern zone, including the 2014 Mw=8.2 earthquake in Iquique; and central zone without major earthquakes), directed networks for each set are constructed. Connectivity and betweenness centrality distributions are calculated and found to be scale-free, with respective exponents γ and δ. The expected relation between both characteristic exponents, δ>(γ+1)∕2, is verified for both data sets. However, unlike the expectation for certain scale-free analytical complex networks, the value of δ is found to be non-universal.
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URI: https://repositorio.uchile.cl/handle/2250/169341
DOI: 10.1016/j.physa.2017.09.064
ISSN: 03784371
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Physica A: Statistical Mechanics and its Applications, Volumen 491, 2018, Pages 445-452
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