PREDICTION OF STRONG EARTHQUAKES IN VRANCEA, ROMANIA, USING THE CN ALGORITHM

The application of the CN algorithm to a new earthquake catalogue, for the period from 1932 to 1993, obtained by merging Romanian and U.S.S. R. data, allows us to monitor, on the intermediate time scale, the pre paration of strong, intermediate-depth earthquakes in the Vrancea Four of the five strong earthquakes with magnitudes above 6.4 are predicte d. The total duration Time of Increased Probability (TIP) of the occur rence of an earthquake (TIP) occupies 21.7% of the time interval under consideration, i.e., about 2.5 years for each strong earthquake.