The LF radio anomaly observed before the Mw=6.5 earthquake in Crete on October 12, 2013

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dc.authoridbiagi, pier francesco/0000-0003-2584-8481
dc.authoridLigonzo, Teresa/0000-0002-6644-9076
dc.authoridMOLDOVAN, IREN ADELINA/0000-0001-8199-8594
dc.authoridKatzis, Konstantinos/0000-0002-1470-2105
dc.authoridD'Amico, Sebastiano/0000-0001-7429-4767
dc.authoridMartinelli, Giovanni/0000-0001-9541-5142
dc.authoridZaharis, Zaharias/0000-0002-4548-282X
dc.contributor.authorMaggipinto, Tommaso
dc.contributor.authorBiagi, Pier Francesco
dc.contributor.authorColella, Roberto
dc.contributor.authorSchiavulli, Luigi
dc.contributor.authorLigonzo, Teresa
dc.contributor.authorErmini, Anita
dc.contributor.authorMartinelli, Giovanni
dc.date.accessioned2025-01-27T20:46:16Z
dc.date.available2025-01-27T20:46:16Z
dc.date.issued2015
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractOn October 12, 2013, an earthquake with M-w = 6.5 occurred in the southern Hellenic Arc, approximately 20 km off the west coast of Crete. The main shock, the focal depth of which is on the order of 40 km, was followed by aftershocks felt in the nearby cities and villages, although the aftershock sequence was poor. The epicentre was located at approximately 60 km from a radio receiver in Crete (CRE), which belongs to the European VLF/LF Radio Network. Several days before the earthquake, a clear disturbance occurred in one of the ten radio signals that the CRE receiver sampled. The disturbance, which can be considered an anomaly, appeared in the 216 kHz radio signal radiated by the Radio Monte Carlo (MCO) transmitter. The radio path MCO-CRE crossed directly over the epicentre area of the aforementioned earthquake. In this work, we present a detailed analysis of the MCO signal anomaly using spectral tools. We also investigate the behaviour of other radio signals sampled by the CRE receiver and consider other possible causes of disturbances on the MCO radio signal. We conclude that the disturbance in the MCO radio signal is a convincingly possible precursor of the earthquake in Crete. Emission of electromagnetic waves with a frequency band that includes 216 kHz from the focal zone of the earthquake can provide a satisfactory explanation of the radio anomaly. (C) 2015 Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.pce.2015.10.010
dc.identifier.endpage105
dc.identifier.issn1474-7065
dc.identifier.issn1873-5193
dc.identifier.scopus2-s2.0-84983158440
dc.identifier.scopusqualityQ1
dc.identifier.startpage98
dc.identifier.urihttps://doi.org/10.1016/j.pce.2015.10.010
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24851
dc.identifier.volume85-86
dc.identifier.wosWOS:000367127200012
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofPhysics and Chemistry of The Earth
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectEarthquake radio precursor
dc.subjectLF precursors
dc.titleThe LF radio anomaly observed before the Mw=6.5 earthquake in Crete on October 12, 2013
dc.typeArticle

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