Perhaps just partially related; I was swimming in a reasonably large lake in Vietnam during the war, and some guys were throwing grenades into the water about 350-400 meters away. Upon each explosion, I could immediately feel a tingle immediately, all up and down that side of my body facing toward each grenade going off.
I took that to be water molecules displaced by each explosion.
Seemingly harmless, but rather an eerie feeling.
While guarding Namo Bridge on Hwy 1 north of DaNang, we’d throw 1/4lb blocks of TNT off every once in a while at night to ‘discourage’ NVA/VC frogmen who might be trying to blow the bridge.
Too close and the shock wave “will mess you up real good!”
They were fishing. ARVNs did it all the time.
Wouldn’t advise a hit from sonar either.