Ionospheric response of the main shock of the Kronotskoe earthquake on December 5,1997 according to the Kamchatka regional network of GPS stations.

Kamchatka regional network of stationary receiving stations of GPS navigation system signals (KAMNET), developed for geodynamic studies, is being used for the first time to study seismic-ionospheric interaction on the example of the Kronotsky earthquake occurred on December 5, 1997 (magnitude M = 7.9). To process KAMNET data, a method was used to determine the parameters of an acoustic shock wave (ASW) using a GPS interferometer. The azimuth of the ASW wave vector of 280 ° corresponds to the direction to the epicenter, and the ASW phase velocity (1000-1200 m/s) is close to the sound speed at the heights of the ionosphere F-region maximum.

Afraimovich E.L., Zhivetyev I. V. Ionospheric response of the main shock of the Kronotsky earthquake on 5.12.1997 according to the Kamchatka regional network of GPS stations. //Volcanology and Seismology, 2005, N4, 56-62.