One of the most interest facts about this disaster is that if the submarine was standing on its tail straight up, its nose would be sticking 150ft OUT of the water it sunk in.
I think I read something similar about the Edmund Fitzgerald i.e. it sank in water that was less deep than the length of the ship.
Similarly, a human can drown in only a few inches of water, not even enough to fully submerge you while lying face first in it, let alone while standing.
Water is not to be trifled with.
And yet even in that shallow of water the pressure would have been around 10 atm. It's amazing how dangerous something as mundane as water can be.
It was 155m long and the ocean was 108m deep, in case anyone else was wondering.