Freak fireball lights up the midwest sky !

[Spoon 11th]

Originally Posted by TLAM Strike

True, in fact IIRC there is an impact of the destructive power of 1 kt per year somewhere on the Earth. Most of the time it hits the ocean or an uninhabited region of the planet's landmass.

Here's a 1 kt airburst. of 20 ft diameter iceball.

Cool calculator.

http://www.lpl.arizona.edu/impacteffects/