US council says asteroid impact energy tops out at 150 megatons

The US National Research Council puts the energy of a 40 to 100 meter asteroid impact at no more than about 150 megatons.

Caleb Mbeki

Planetary Science Reporter

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The US National Research Council considers the energy released by a 40 to 100 meter asteroid impact to be no greater than approximately 150 megatons. ^[2]