Indianapolis is sitting on top of a large area of limestone that is situated about 100-150 feet below the surface.
We mine it in various places around town and have underground explosions all the time.
It is hardly felt at all more than 1/2 mile away from blast area.
Indianapolis is sitting on top of a large area of limestone that is situated about 100-150 feet below the surface.
We mine it in various places around town and have underground explosions all the time.
It is hardly felt at all more than 1/2 mile away from blast area.