“I read an article the other day that said if a nuke was set off in DC it would destroy the whole city etc etc.
I read an article a couple of weeks ago that said one nuke would be insufficient to destroy D.C. I thought “guess they’ll need two.”
You know you can’t kill even one cockroach with an nuclear bomb, how many will it take to get rid of the whole city?
Here is an interesting page. It shows the impact of various sizes ( including an asteroid strike ). You can choose any city in the world.