A very sad and sobering, albeit unconfirmed, account of what is believed to have occurred in the final moments of the loss of the ARA SAN JUAN will be found at:
https://thenewstalkers.com/community...of-a-submarine
Incidentally, for the benefit of those conjecturing on the relative calm to be found when a submarine dives to avoid extreme surface conditions, I have experienced a 26 degree role to either side in a nuclear submarine - at 500 feet keel depth. I can't say where or when, but I was certainly very glad not to be nearer the surface.
Jack