The upper part of the Earth Crust at the Low Tagil city territory is inhomogenious by composition and physics propertys rocks and soiles. The value of the seismic intensity is different under conditions active layer structures. At the central part of the Low Tagil city the solid rocks is over by weathering ground 5-15 m thickness. The value of calculated seismic intensity in this area is 6-7 balls by scale MSK-64 and more then at the territory from west and east of Low Tagil, where thickness of weathering ground is 1-5 m. The value of calculated seismic intensity is 5-6 balls by scale MSK-64 at the territory from west and east of Low Tagil city.