Two-point monitoring of seismic areas in Kamchatka region by lightning discarge signals

  1. Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS, Russia
  2. Institute of Cosmophysical Researches and Radio Wave Propagation FEB RAS, Russia

   The paper describes technique and preliminary results of monitoring of
   seismic areas in Kamchatka region according to the observations of
   lightning discharge electromagnetic signals, atmospherics, at two sites.
   One observation point is located near Yakutsk. Here atmospheric signals
   from lightning sources at the distance of 2000-12000 km, passing over
   Kamchatka region, are analyzed. In some cases, to improve the accuracy of
   measurements the observational data from Neryungri are additionally
   applied. Signal amplitude variations determined by seismic disturbances in
   the lower ionosphere are considered. The second observation point is
   located in Paratunka (Karymshina station) on Kamchatka Peninsula.
   Electromagnetic and long-distance signals, which correspond to the first
   Fresnel zones on Kamchatka path of atmospheric propagation from a
   lightning sources to Yakutsk, are analyzed here. This pair of receiving
   stations allows us to combine the possibilities of two monitoring methods
   of detection of seismic events and their precursors in Kamchatka region.