The latest aspects of telluric and electromagnetic variations associated with shallow and intermediate depth earthquakes in the South Aegean

K. Nomikos, F. Vallianatos, I. Kaliakatsos, E. Sideris, M. Bakatsakis

Abstract


Recent observations of telluric and electromagnetic field variations (radioemissions) assocuated with shallow and intermediate depth earthquakes in the South Aegean are presented. A telemetric system, installed on Crete Island, which continuously records the telluric and electromagnetic field variations is described. In the field stations of the system we measure both the telluric variations (using an appropriate electric dipole configuration) and the horizontal electric component of the electromagnetic field in 3 kHz, 10 hKz, 41 MHz and 53 MHz (using tuned and l/2 antennas respectively. Furthermore, a theoretical model is given on the generation and the form of preseismic telluric variations based on the charge dislocation model.

Keywords


Earthquake precursors;Aegean;Greece

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References


DOI: https://doi.org/10.4401/ag-3919
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X