Catastrophe Calculator
 

was reading up on this story about the new giant crater discovered in Africa (a pretty good story I should probably post here), but I came across this catastrophe calculator. basically you enter information about an asteroid (size, composition, sepdd, etc.) and it'll tell you what will happen to you if you are such a distance from the impact (crater dimensions, thermal radiation, siesmic effects, ejecta, air blast).

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

I had some fun with it. I found it takes an asteroid at least 3573.29 miles in diameter to turn the earth into an asteroid belt between Venus and Mars :eek:


oh yeah, here's the article on the crater in Egypt
http://www.space.com/scienceastrono...big_crater.html