Q:

What is the blast radius of a nuclear bomb?

A:

Quick Answer

The blast radius of a nuclear bomb is variable. According to the National Terror Alert Center, the contributors to the blast radius of a nuclear bomb include the yield, fuel, weather, geography, whether the explosion was in the air or at the surface and even time of day.

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Full Answer

The blast radius of the bomb dropped on Hiroshima was about 1.7 miles, and the bomb left a crater that was 2 miles deep. The largest bomb as of August 2014, the 100 megaton Tsar Bomba, had a blast radius of 7.7 miles. The fireball resulting from the detonation of the Tsar Bomba is estimated at 1.8 miles, with a thermal radiation radius of 47.8 miles.

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