The problem of finding the radon flux density by its concentration at different depths of the earth's surface

The model of radon density distribution on the basis of the fractional diffusion–wave equation (FDWE) is considered. The technique of parametric identification of the model is proposed. Comparison of the results of model calculations with experimental data allows to draw a conclusion about the adequacy of the technique. Relevance of the work is determined by the fact that the forecast of radon density distribution in the Earth's crust allows to determine the places of earthquakes in advance.