So in Bethesda's E3 trailer for Fallout 76 they unveiled obtainable nukes within the game. They then proceeded to show the Nuke launching and then landing in a certain area, this area just so happens to be the forest. If you take a look at the attached photo you can see they set the nuke to land right on top of a place called the Charleston Capital Building. Which just so happens to be a little south from vault 76.
So lets say you're around the vault at the time of a nuclear launch, could you run into vault 76 and somehow close the door?