There was no recorded wreck at this site so it was reported to your related authorities, including the Receiver of the Wreck (RoW). U-31 evaded a spread of four torpedoes fired by HMS Trident about fifteen miles (24 km) south of Lorient and was then pressured to dive when fired https://kameronrrois.thechapblog.com/33284583/u31-no-further-a-mystery