I've a friend who was in Nam. He told stories about how he would wake up sometimes because he could feel the ground shake from carpet bombing by what he called Beefers. He said it was strange because sometimes you would feel it before you hear it and sometimes you wouldn't hear it at all but definitely feel it.
A close friend of mine was a ‘52 pilot during Nam. When I came home from there, we ran into each other at a party. The first thing he asked after he learned where I’d been was what was it like to be on the ground when he and his fellow pilots were dropping all that metal? Enemy or not, I always pitied those poor suckers who caught the brunt of those massive loads. Yes, they surely could be felt and heard. Thankfully, my friend has long since made his peace with what his ordnance wrought.