All I can see there before "Este contenido es exclusivo para suscriptores" is conjecture that (translating and emphasizing) "a torpedo may have pierced the hull of the vessel". Is there any evidence?

The hull is bent inward in a manner characteristic of a torpedo.

Or of hitting a rock. What's the seabed around the ship like?

A famous example which gave rise to similar hypotheses:

https://news.err.ee/1142424/foreign-ministry-adviser-ms-esto...