just checked it on Beijing where I used to live and it seem only tourist city center would be eliminated with regular weapons, while most of the population outs

just checked it on Beijing where I used to live and it seem only tourist city center would be eliminated with regular weapons, while most of the population outside would be untouched, I was surprised how weak is supposed to be nuclear bomb, I remembered always it was like 10-20km deadly and 50km run away zone, but maybe I am confusing it with nuclear power plant