Some Navy stuff:

USS Iowa (BB-61) fires a full broadside of her nine 16″ and six 5″ guns during an exercise. Notice how the water is concaved from the concussion of the blasts.

I got to see the USS New Jersey do a full broadside once. We were 7 miles away and let me tell you, even at that distance (as well as not being the target!) it was terrifying! You could feel the thump of the guns in your chest.

#USSNewJersey #Battleship #USNavy

photo courtesy US Navy

@DeerWhispers I bet the orcas love that :(
@anathema_device This occurred off the coast of Puerto Rico, not sure if there are any Orcas there. Not that there aren't any sea critters there that wouldn't be annoyed by it tho
@DeerWhispers Those monsters create a vacuum on deck when they fire. I remember reading about a sailor being thrown overboard during Desert Storm by that pressure wave.