Evidence of critical dynamics in various electromagnetic precursors

SM Potirakis, Y Contoyiannis, A Schekotov… - The European Physical …, 2021 - Springer
A wide variety of electromagnetic phenomena possibly related with earthquake (EQ)
preparation processes have been reported in the literature during the last few decades. An …

Four-stage model of earthquake generation in terms of fracture-induced electromagnetic emissions: a review

K Eftaxias, SM Potirakis, Y Contoyiannis - Complexity of seismic time series, 2018 - Elsevier
Based on a multidisciplinary analysis, the following four-stage model of earthquake (EQ)
dynamics by means of precursory electromagnetic (EM) emissions (EMEs) has been …

Effect of microstructure on electrical property of coal surface

X He, X Liu, D Song, B Nie - Applied Surface Science, 2019 - Elsevier
It is generally acknowledged that electromagnetic radiation (EMR) phenomenon occurs
during coal or rock loading and failure. This physical phenomenon can be used as a method …

Subduction as a smoothing machine: how multiscale dissipation relates precursor signals to fault geometry

P Venegas-Aravena, EG Cordaro - Geosciences, 2023 - mdpi.com
Understanding the process of earthquake preparation is of utmost importance in mitigating
the potential damage caused by seismic events. That is why the study of seismic precursors …

Critical dynamics related to a recent Bitcoin crash

PI Zitis, Y Contoyiannis, SM Potirakis - International Review of Financial …, 2022 - Elsevier
The cryptocurrency market is an emerging market that is characterized by intense volatility
and therefore the study of its dynamics presents increased interest. The present work …

Statistical and criticality analysis of the lower ionosphere prior to the 30 October 2020 Samos (Greece) earthquake (M6. 9), based on VLF electromagnetic propagation …

DZ Politis, SM Potirakis, YF Contoyiannis, S Biswas… - Entropy, 2021 - mdpi.com
In this work we present the statistical and criticality analysis of the very low frequency (VLF)
sub-ionospheric propagation data recorded by a VLF/LF radio receiver which has recently …

Integration of seismic refraction and fracture-induced electromagnetic radiation methods to assess the stability of the roof in mine-workings

S Daniliev, N Danilieva, S Mulev, V Frid - Minerals, 2022 - mdpi.com
This paper considers the joint use of two popular geophysical methods (fracture-induced
electromagnetic radiation and seismic refraction tomography) to assess the stress-state in …

Recent seismic activity at Cephalonia (Greece): a study through candidate electromagnetic precursors in terms of non-linear dynamics

SM Potirakis, Y Contoyiannis, NS Melis… - Nonlinear Processes …, 2016 - npg.copernicus.org
The preparation process of two recent earthquakes (EQs) that occurred in Cephalonia
(Kefalonia), Greece,((38.22∘ N, 20.53∘ E), 26 January 2014, M w= 6.0, depth∼ 20 km) and …

On possible electromagnetic precursors to a significant earthquake (Mw= 6.3) occurred in Lesvos (Greece) on 12 June 2017

SM Potirakis, A Schekotov, Y Contoyiannis, G Balasis… - Entropy, 2019 - mdpi.com
This paper reports an attempt to use ultra-low-frequency (ULF) magnetic field data from a
space weather monitoring magnetometer array in the study of earthquake (EQ) precursors in …

Spontaneous Symmetry Breaking in Systems Obeying the Dynamics of On–Off Intermittency and Presenting Bimodal Amplitude Distributions

SM Potirakis, P Papadopoulos, NL Matiadou… - Symmetry, 2023 - mdpi.com
In this work, first, it is confirmed that a recently introduced symbolic time-series-analysis
method based on the prime-numbers-based algorithm (PNA), referred to as the “PNA-based …