Analysing the topology of seismicity in the Hellenic arc using complex networks |
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| Authors: | Eleni Daskalaki Gerassimos A Papadopoulos Konstantinos Spiliotis Constantinos Siettos |
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| Institution: | 1. Institute of Geodynamics, National Observatory of Athens, Athens, 11810, Greece
2. School of Applied Mathematics and Physical Sciences, National Technical University of Athens, 15780, Politechnioupoli, Zografos, Athens, Greece
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| Abstract: | Based on the theory of complex networks, we quantify for the first time correlations between seismic events occurring in the Hellenic arc and Trench system, which is the most seismogenic structure in the European–Mediterranean region. We examine how relatively strong events with their aftershock sequences trigger phase transitions of the underlying network topology of seismic activity from random to scale-free structures. In particular, we show that the network is characterized by a highly clustered spatial structure giving rise to heterogeneous networks exhibiting enhanced small-world attributes. |
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