From the introduction: We develop an original ecologically safe approach to the assessment of the geoecological risk from powerful mass explosions for the social and natural environment. In this approach, seismic vibrators are used as sources imitating explosions but having, in contrast to them, a much smaller power. Such sources can simultaneously excite in a medium seismic and acoustic (vibro-seismo-acoustic) oscillations with precision power and frequency-temporal characteristics.