Constantinos Nomicos
Technological Educational Institute of Athens
OpticsPhysicsPhosphorGeologyLuminescenceScintillatorSeismologyOptical transfer functionParticle detectorMaterials scienceEnergy conversion efficiencyX-rayCoatingLight emissionFracture (geology)OptoelectronicsPhotodiodeDetective quantum efficiencyDetectorEmission spectrum
90Publications
21H-index
1,170Citations
Publications 96
Newest
Last. Constantinos NomicosH-Index: 21
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It has recently been found that the evolution of the preparation of a strong earthquake (EQ), as it is monitored through fracture-induced electromagnetic emissions (EME) in the MHz band, presents striking similarity with the evolution of a thermal system as temperature drops, since distinct steps of the evolution of the phenomenon of spontaneous symmetry breaking (SSB) can be identified. Here, the study of fracture-induced EME in the MHz band in analogy to thermal systems is extended to the phas...
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Last. Constantinos NomicosH-Index: 21
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In this brief report we present evidence for the dynamics of the earthquake (EQ) preparation processes that led to two strong events (Mw>6) that took place in Durres (Albania) and Chania (West-Crete, Greece) on 26 and 27-11-2019, respectively. Specifically, MHz fracto-electromagnetic emissions (EME) recorded by our telemetric stations presented critical fluctuations prior to each one of these EQs. Subsequently, the EME possibly related to each one of these EQs evolved differently towards the occ...
1 Citations
#1Ioannis KandarakisH-Index: 28
#2D. Cavouras (TEI: Technological Educational Institute of Athens)H-Index: 11
Last. Constantinos NomicosH-Index: 21
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#2A. SchekotovH-Index: 14
Last. Constantinos Nomicos (UWest: University of the West)H-Index: 21
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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 Greece. The data from four magnetometer stations of the HellENIc GeoMagnetic Array (ENIGMA) have been analyzed in the search for possible precursors to a strong EQ that occurred south of Lesvos Island on 12 June 2017, with magnitude Mw = 6.3 and focal depth = 12 km. The analysis includes conventional statistical method...
10 CitationsSource
Last. Constantinos NomicosH-Index: 21
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In this letter we present preliminary results concerning precursors to the recent significant (Mw 6.7) earthquake (EQ) that took place in the region south of the Greek Island of Zakynthos (October 25, 2018). We show, in terms of fracture-induced electromagnetic emissions (EME), that the Earth system around the focal area was at critical state up to a few hours before the occurrence of the EQ. Importantly, departure from the critical state, in terms of the symmetry breaking phenomenon, was also i...
#1Demetrios Cantzos (Technological Educational Institute of Piraeus)H-Index: 3
#1Demetrios Cantzos (Technological Educational Institute of Piraeus)H-Index: 3
Last. Constantinos NomicosH-Index: 21
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The recent seismic activity in the eastern Aegean Sea, foregrounded by two major (ML = 6.1 and ML = 6.2) earthquakes occurring near Lesvos and Kos islands, respectively, is investigated in this work. Electromagnetic radiation measurements across different frequency bands and antenna orientations from a monitoring station in Agia Paraskevi, Lesvos Island, are analysed in order to reveal earthquake precursory signatures hidden in the electromagnetic data sequence. A straightforward, data-driven ap...
5 CitationsSource
Last. Constantinos NomicosH-Index: 21
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In this letter we show, in terms of fracture-induced electromagnetic emissions (EME) that the Earth system around the focal areas came to critical condition a few days before the occurrence of recent significant (M>5) earthquakes (EQs) which happened in the region of the eastern Aegean Sea, between the Greek Islands of Lesvos (6-7, 12 February 2017 and 12 June 2017) and Kos (20 July 2017) and the Turkish Asia Minor coastline. Moreover, departure from the critical state in terms of a tricritical ...
3 Citations
Last. Constantinos NomicosH-Index: 21
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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...
#2Yiannis Contoyiannis (Technological Educational Institute of Piraeus)H-Index: 3
Last. Konstantinos Eftaxias (UoA: National and Kapodistrian University of Athens)H-Index: 29
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Abstract. 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 ((38.25° N, 20.39° E), 3 February 2014, M w = 5.9, depth ∼ 10 km), respectively, is studied in terms of the critical dynamics revealed in observables of the involved non-linear processes. Specifically, we show, by means of the method of critical fluctuations (MCF), that signatures of critical, as well as tricritic...
21 CitationsSource
A multichannel, multi-frequency approach on the analysis of critical electromagnetic (EM) signatures prior to earthquakes is presented. The algorithm employed is based on single-channel techniques for the identification of longmemory trends in fractal processes and attempts to take advantage of the increased information content that is provided by multichannel EM recordings. The EM measurements consist of four channels which correspond to four distinct EM radiation frequencies. Two of these freq...
3 CitationsSource