Geological studies conducted over the last decades
have shown us that our planet has undergone a similar meteoric bombardment
suffered by the Moon, and even more intense. In fact, due to its greater
gravity, the impact rate on Earth is 1.5 times higher than our natural
satellite.
The size range of objects striking bodies is between a few meters to others of
several kilometers across, and producing very different effects of different
factors: the diameter of the shock, their speed, their density, the place to
occur impact either on sea or land, etc.. An example of this was the
"Tunguska Event" which little impact (June 30, 1908) has gone
unnoticed, because it took place on a spot on the planet virtually underpopulated. What would have happened if the case occurred on an urban or
densely populated area?
