are you talking about washington, or italy? washington, no. there are some homes and other things inside the old blast area, but not many. they have kept it clear and made most of it a national park. in italy, the entire city of Naples and it's surroundings, is built on and under the volcano. if it were to go again, 10's of 1000's would probably die if there were no warning. there is no place to run except into the sea.