Application of electric method to the tentative short-term forecast of Kamchatka earthquakes

SummaryTentative forecasts of strong earthquakes on Kamchatka have been carried out continuously since 1972 with scientific purpose. Three methods are being used: electric, ratioVp/Vs and seismostatistical. The main scientific result of the two-year study is the statement that it is possible to predict earthquakes of magnitude ≥5.5 some days in advance; eight earthquakes had been predicted from a total number of twelve.