Science and Education Publishing American Journal of Civil Engineering and Architecture 2328-3998 4 2 2016 2 24 Seismic Waves Distribution from Blasting in a Rock Massif with One Crack or System of Parallel Fissures 50 53 EN Viktor Boiko Department of Mining and Geotechnical Engineering, Special Design-Engineering Bureau GEOPHYSICIST, Scientific-Production Enterprise, Kiev, Ukraine AJCEA2016422 10.12691/ajcea-4-2-2 2015 11 14 2015 12 12 2016 2 22 Explosive action of cylindrical charge was studied in an anisotropic rock massif which contain cracks or system of parallel fissures. Sound wave theory was used for qualitative pattern of seismic wave distribution around blasting. Results show changing of seismic waves from round to elliptical shape during distribution through rock massif with cracks.