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 …

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 …

Unfolding the procedure of characterizing recorded ultra low frequency, kHZ and MHz electromagnetic anomalies prior to the L'Aquila earthquake as pre-seismic ones …

K Eftaxias, G Balasis, Y Contoyiannis… - … Hazards and Earth …, 2010 - nhess.copernicus.org
Ultra low frequency-ULF (1 Hz or lower), kHz and MHz electromagnetic (EM) anomalies
were recorded prior to the L'Aquila catastrophic earthquake (EQ) that occurred on 6 April …

Monitoring of a preseismic phase from its electromagnetic precursors

YF Contoyiannis, PG Kapiris, KA Eftaxias - Physical Review E—Statistical …, 2005 - APS
Fracture in disordered media is a complex problem for which a definitive physical and
theoretical treatment is still lacking. We view earthquakes (EQ's) as large-scale fracture …

[HTML][HTML] Diffusion entropy vs. multiscale and Renyi entropy to detect progression of autonomic neuropathy

HF Jelinek, R Tuladhar, G Culbreth, G Bohara… - Frontiers in …, 2021 - frontiersin.org
We review the literature to argue the importance of the occurrence of crucial events in the
dynamics of physiological processes. Crucial events are interpreted as short time intervals of …

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

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 …

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 …

Recent field observations indicating an earth system in critical condition before the occurrence of a significant earthquake

SM Potirakis, Y Contoyiannis, K Eftaxias… - … and Remote Sensing …, 2014 - ieeexplore.ieee.org
In this letter, we show, in terms of the fractureinduced electromagnetic emissions (EME)
recorded prior to the earthquake of Chania, Greece [(35.50° N, 23.28° E); October 12, 2013; …

Lower-ionosphere anomalies prior to strong earthquakes that occurred in north-central mainland Greece on March 2021 as revealed by multi-method analysis of VLF …

DZ Politis, SM Potirakis, Y Contoyiannis… - Annals of …, 2023 - annalsofgeophysics.eu
In this work we present the multi-method analysis of very low frequency (VLF) data, acquired
by the radio receiver with call name UWA, located in Athens (Greece), in the University of …

Tsallis and Levy statistics in the preparation of an earthquake

YF Contoyiannis, K Eftaxias - Nonlinear Processes in …, 2008 - npg.copernicus.org
Precursory fracture induced electromagnetic (EM) emissions, rooted in opening cracks and
ranging from MHz to kHz, with the MHz appearing earlier, are produced and detected both at …