The analysis of the models characterizing the preparation of starting earthquakes for different types of stresses on tectonic plates enabled to convey the analysis of a possibility of earthquakes for the case of the parallelfaults ,which simultaneously allows to figure ways of the irprediction, i.e.permits to reduce earth quake risk. The investigation of the arisen block structure applied the topological approach. The boundary problem imbeds into the topological structure and transforms in the functional equations.
