Аннотации:
The work presents the values of critical frequences of E layer of ionosphere for the period 0...8 May 2011 obtained from the ionograms registered on the route Cyprus – Bălţi in case of the Vrancea earthquake that took place on 01 May 2011 at 5:31 a.m. local time.The deviation of the critical frequency before the earthquake reaches the value of 0.8 MHz.