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Old 03-April-2008, 03:04 PM
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George George is offline
Order of Kilopi
 
Join Date: Sep 2003
Location: San Antonio, Tx.
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It doesn't seem to be remotely accurate as to the impact energy. A 1/2 mile asteroid impact energy will be vastly more than 1000 tonnes of TNT. One calculator shows ~150,000 MegaTon.

I am not sure about their devastation area calculations.

Nevertheless, it is an amazing find if the object is from 700BC!! I hope so.
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