You Might Survive a Nuclear Blast—if You Have the Right Shelter

But let’s be honest: Most people, even in the moderate damage zone, won’t survive. Hardly anyone lives or works in nearly windowless reinforced-concrete buildings, nor in the vicinity of a concrete bunker. (Even people at a bank would have to get into the vault to be in the safest place; people in a subway would get the most benefit in a station that’s very deep underground.) Most people live in timber-frame or other less-armored buildings. 

This shouldn’t be construed as a way to be safe in a nuclear explosion, says Dylan Spaulding, an earth scientist and nuclear expert at the Union of Concerned Scientists. Strong structures made of concrete with metal reinforcement and designed for seismic safety would survive the pressures the team modeled, he says, but those pressures would be enough to destroy most traditional, wood-framed houses and brick structures without reinforcement.

And he points out that the blast wave is only part of the story. While it is the main source of danger in a non-nuclear explosion—like the one that rocked Beirut in 2020, which was caused by a large…