The anisotropic properties of sedimentary, overburden rocks, vertical joints and horizontal planes of discontinuity between layers affect the properties of vibration medium. Measurements of vibration velocity for various blasting depths between charges and endangered objects were performed. The growth of the share of blasting depth, i.e. the perpendicular ro layers component of distance between charge and object causes a more intensive attenuation of the vibration velocity. The peak particle velocity attenuation as a function of blasting depth for most usable sealed distances was elaborated.