CLARIFICATION OF THE NATURE OF TYPICAL PRECURSOR ANOMALIES FOR DIFFERENT-DEPTH EARTHQUAKES IN THE KURIL-KAMCHATKA REGION

The task was set on investigation of the possibility of constructing a new algorithm for earthquake prediction based on a set of precursor effects that had been reliably identified from the world data as a result of constructing the generalized vicinity of a strong earthquake from a scaled combination of the data on a large number of foreshock and aftershock areas of individual strong earthquakes. In relation to the Kamchatka-Northern Kurils region, the first-stage solution of this task lies in clarification of the regional character of the averaged precursor effects on the basis of the most complete and homogeneous regional catalogue. There has been a later onset of anomalous changes in the intensity of flow of events and in the slope of the recurrence diagram for intermediate-depth earthquakes. The deep-seated earthquakes show a dominant trend of increased rather than decreased depth of weak events in the vicinity of strong events. The specified features of the averaged precursor behavior will be used as typical patterns to predict different-depth earthquakes in the Kuril-Kamchatka region.