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Re: (meteorobs) Excerpts from "CCNet DIGEST, 15 June 1999"
> This is at least the second time I've read this message. I meant to comment
> about it the first time from wherever I saw it previously. But the figure of
> 2200 square kilometers of damage seems quite high to me. I just looked up in
> Richard Nortons book "Rocks from Space" that showed an approximate dimension
> of damage from the tunguska event to be in the neighborhood of about 20X25
> miles. In Square miles this would be about 500. My conversion into kilometers
> is rocky, but I would think it would be at least less than 1000?
My calculation gives 500 sq miles is equivlaent to 1280 km^2. 2200 km^2
is the equivalent circle of radius 16.5 miles. Not a big difference
from the numbers you recall George. Welcome back by the way.
Malcolm
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