There was no recorded wreck at this location so it was documented to your relevant authorities, including the Receiver of your Wreck (RoW). U-31 evaded a distribute of four torpedoes fired by HMS Trident about fifteen miles (24 km) south of Lorient and was then pressured to dive when fired https://u3124431.ja-blog.com/34237411/considerations-to-know-about-u31