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Radio Direction Finding (RDF) - Geomagnetic Monitoring Study of the Himalaya Area in Search of Pre-Seismic Electromagnetic Signals

Author

Listed:
  • Valentino Straser
  • Daniele Cataldi
  • Gabriele Cataldi

Abstract

The study proposes to present data on the broadband electromagnetic monitoring (SELF-VLF band, 0-32000 Hz) able to work 24h7, within the electromagnetic monitoring network with RDF (Radio Direction Finding) technology. The area monitored for the experimentation is the Himalayan one, historically hit by strong and devastating earthquakes. The study collected 2991 groups of radio-anomalies, related to the crustal diagnosis and to non-destructive earthquakes. It is the first network of this type able to work on a wide bandwidth (ELF-VLF band, 0-32000 Hz) specially designed to study the so-called "Seismic Electromagnetic Precursors" (SEPs) and the "Seismic Geomagnetic Precursors" "(SGPs). This monitoring system, based on RDF technology, has been active since 2017. In questo studio viene proposta una nuova chiave di lettura dei candidate precursori sismici, sperimentabili e verificabili anche in altre parti del mondo. The areas remotely monitored by the experimental station of Rome and Pisa, in Italy, thousands of kilometers away show a convergence of the data and, in particular, the frequency bands that appear before the earthquakes of magnitude equal to or greater than 4.5 of the Richter scale, about 72 hours before the main shock. The direction of the electromagnetic signal of the future epicentral area is intercepted by the RDF system. This is the first study for the analysis of EM precursors worldwide.

Suggested Citation

  • Valentino Straser & Daniele Cataldi & Gabriele Cataldi, 2019. "Radio Direction Finding (RDF) - Geomagnetic Monitoring Study of the Himalaya Area in Search of Pre-Seismic Electromagnetic Signals," Asian Review of Environmental and Earth Sciences, Asian Online Journal Publishing Group, vol. 6(1), pages 16-27.
    • Handle: RePEc:aoj:areaes:v:6:y:2019:i:1:p:16-27:id:712
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