From the message RGO:
Initially, researchers thought that the Japanese ship Roi Maru, which the Americans torpedoed during the war, might have been at the bottom. But upon closer inspection, it turned out that the ship was still of German origin. On the marking plate found by divers, the inscription "Augsburg" is clearly visible - the so-called armored German cruiser, transferred to Japan as reparations in the 1920 year.
The Center for Underwater Research of the RGO explains the discrepancy by the fact that ships often transferred or sold to another country, in which they were given a different name. Specialists of the Russian Geographical Society plan to contact their German colleagues to find out history origin of the vessel.
The Center for Underwater Research of the RGO explains the discrepancy by the fact that ships often transferred or sold to another country, in which they were given a different name. Specialists of the Russian Geographical Society plan to contact their German colleagues to find out history origin of the vessel.

The research activities at Matua by the specialists of the Russian Geographical Society and the Ministry of Defense of the Russian Federation have been carried out since 2016. During this time, managed to find many samples of Japanese military equipment. Also, a series of studies were conducted on the activity of the Sarychev Peak volcano, underwater topography, island contours, soil conditions and fortifications at Matua.
Recall that during the Second World War on this island was a large naval base of militaristic Japan.