The procedure for the measurements: The telemetric VAN network and how the epicenter and magnitude are predicted

  • Mary S. Lazaridou-Varotsos
Part of the Springer Praxis Books book series (PRAXIS)


The experimental procedure to measure a preseismic VAN signal, or SES, is simply the following: Two electrodes are driven into the earth, to a depth of, for example, two meters. Each electrode is connected to one end of an insulated cable and then the potential difference is measured between the two free ends of the wires with a voltmeter (which in practice is a differential amplifier).


Earthquake Prediction Earthquake Magnitude Seismic Region Sensitive Station Impending Earthquake 
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Copyright information

© Springer-Verlag GmbH Berlin Heidelberg 2013

Authors and Affiliations

  • Mary S. Lazaridou-Varotsos
    • 1
  1. 1.Solid Earth Physics Institute Department of PhysicsUniversity of AthensAthensGreece

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