What Happens To A Person’s Body When A Submarine Implodes?

What is a water implosion and how does it happen? High-pressure submarine implosion happens when a submarine’s (or submersibles) hull succumbs to the intense external water pressure at great depths. As the submarine descends deeper into the water, the pressure exerted on the hull increases significantly. If the hull is not strong enough to withstand this immense pressure, it can collapse inward, causing an implosion.