“Its heel connected with the ground, shattering the road. Adam and Sam felt the floor beneath them sink as fragments of granite flew all around, causing the nearby cars and buildings to be pelted with fragments of rock.”
How powerful would this kick need to be?
Adam and Samantha were both roughly 3 meters away and could feel the effects of the kick, so let's use that as the radius for the dome. Where the bot hit created a hole about 50 cm deep or so, so we’ll use that as the height
Throwing these numbers into a Spherical Dome Calculator, we get 7.134 m^3, or 7,134,000 cm^3 for the volume
Fragmentation level for granite is 14 j/cc
14*7,134,000 = 99,876,000 Joules, or 0.0239 Tons of TnT (Small Building Level)
Scorpion bots are stronger than Empowered Training Bots, so they’d scale above this