How far underground would I need to be to survive a nuclear explosion?

On January 22, 2013

Lets say a Nuclear bomb went off above ground and I was underground, would I have to be a mile or so underground to survive or about how far?
I mean if I was directly underneath the explosion.

Chosen Answer:

Depending how far away from ground zero you are , you wouldn’t have to be very far underground at all. The main things you would need to survive is water, fresh air or a way to recycle air and plenty of food. If you were to go out into the fallout for any reason you would need a protective suit of some sort and you could not be out for very long at all. Some of the missile silos here in the US that are manned are only about 100 feet underground but they are lead lined and fortified.There are even some for sale, You can do a search for Missile bases for sale or missile basses.com
by: Tim M
on: 24th August 10

5 Responses to “How far underground would I need to be to survive a nuclear explosion?”

  • well. i guess if you were to be hit directly and you where underground you wouldent surive as there will be a crater lol. but idk about anywhere else

  • Depending how far away from ground zero you are , you wouldn’t have to be very far underground at all. The main things you would need to survive is water, fresh air or a way to recycle air and plenty of food. If you were to go out into the fallout for any reason you would need a protective suit of some sort and you could not be out for very long at all. Some of the missile silos here in the US that are manned are only about 100 feet underground but they are lead lined and fortified.There are even some for sale, You can do a search for Missile bases for sale or missile basses.com

  • I am underground right now.

    Has anything happened up there?

  • Depending on the weapon used and depending on how far above ground level the weapon was detonated – not very far… maybe 100 feet or less…

    Nuclear bombs go all the way from a few kilotons to 50 megatons. “Above ground” is not defined…

  • Nuclear plants use 6 feet on concrete to stop radiation.
    If the blast is above ground, an air blast it causes more fallout.
    The size of the bomb would determine the blast crater.
    Underground if the area was not crushed would be protected, but fallout would last for a very long time.
    Submarines would be protected.