RADIOMETRIC CONTROL OF THE SEISMIC ACTIVITY OF THE NORTHERN ARMENIA

On stationary radiometric stations of the Northern Armenia were carried out observations after the variation of subsoil radon concentration. As a result of longstanding observations were obtained data, which are allowing to reveal regularities in the variations of the emanation field of subSoil radon, whih have definite practical importancc.ln particular, a seasonal periodicity was established in the variations of radon, which is in opposition of the temperature of atmosphere layer near the earth. Bell-shaped changes of radon concentration are precursors of the local changes of tensed condition of roles and are connected with the preparation of local earthquakes