On the recent seismic activity at Ioannina (Greece): Pre-earthquake electromagnetic emissions with critical and tricritical behavior

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Main Authors: Contoyiannis, Y., Potirakis, S. M., Kopanas, J., Antonopoulos, G., Eftaxias, K., Nomicos, C.
Format: Preprint
Published: 2016
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author Contoyiannis, Y.
Potirakis, S. M.
Kopanas, J.
Antonopoulos, G.
Eftaxias, K.
Nomicos, C.
author_facet Contoyiannis, Y.
Potirakis, S. M.
Kopanas, J.
Antonopoulos, G.
Eftaxias, K.
Nomicos, C.
contents In this short paper we report that the dynamics of the earthquake (EQ) preparation processes, as embedded in the observed fracture-induced electromagnetic emissions (EME), were characterized by critical and then tricritical behavior a few days before the occurrence of the recent Ioannina (Greece) earthquake [($39.79^o N, 20.69^o E$), 15 October 2016, $M_L=5.3$]. Specifically, an excerpt of the MHz EME recorded by our remote telemetric station near the city of Ioannina five days before the EQ was found to possess critical characteristics, followed by an excerpt possessing tricritical characteristics. The analysis was performed by means of the method of critical fluctuations (MCF). Interestingly, spontaneous symmetry breaking was identified between critical and tricritical behavior.
format Preprint
id arxiv_https___arxiv_org_abs_1610_06220
institution arXiv
publishDate 2016
record_format arxiv
spellingShingle On the recent seismic activity at Ioannina (Greece): Pre-earthquake electromagnetic emissions with critical and tricritical behavior
Contoyiannis, Y.
Potirakis, S. M.
Kopanas, J.
Antonopoulos, G.
Eftaxias, K.
Nomicos, C.
Geophysics
Data Analysis, Statistics and Probability
In this short paper we report that the dynamics of the earthquake (EQ) preparation processes, as embedded in the observed fracture-induced electromagnetic emissions (EME), were characterized by critical and then tricritical behavior a few days before the occurrence of the recent Ioannina (Greece) earthquake [($39.79^o N, 20.69^o E$), 15 October 2016, $M_L=5.3$]. Specifically, an excerpt of the MHz EME recorded by our remote telemetric station near the city of Ioannina five days before the EQ was found to possess critical characteristics, followed by an excerpt possessing tricritical characteristics. The analysis was performed by means of the method of critical fluctuations (MCF). Interestingly, spontaneous symmetry breaking was identified between critical and tricritical behavior.
title On the recent seismic activity at Ioannina (Greece): Pre-earthquake electromagnetic emissions with critical and tricritical behavior
topic Geophysics
Data Analysis, Statistics and Probability
url https://arxiv.org/abs/1610.06220