Yes of course, I meant as a general idea of what you’d aim to do lacking any other information beyond the fact that the bomb itself fell in the local downtown area (going by the post itself).
Thing is if a bomb dropped that close most people will not know what the scale of the bomb was, what the design was, how far exactly they were from the blast radius, whether it’s ground / atmospheric, wind direction, all that stuff. In that short amount of time you’d just need to run into the nearest still-standing shelter & figure things out from there.
Hopefully with some extreme luck the bomb would fall just as you were walking/driving past your nearest fallout shelter and can easily get in. Or you’re a prepper and aren’t far from your homemade bunker with supplies, radio, and whatnot.