Kiyosumi Maru
Armed merchant cruiser, sunk 1944, Chuuk
Built in 1934 as a passenger cargo liner and converted to an armed merchant cruiser in 1941. She was sunk during Operation Hailstone and lies on her port side, with large torpedo damage visible along the hull. Historical accounts record fuel seeping from the wreck, and she is one of three wrecks currently treated as most at risk of leaking.
- Depth
- 30 m
- Tonnage
- 8,614 t
- Sunk
- 1944
- State
- Chuuk
Current notices
- Priority watchUpdated 12 Oct 2026
Priority watch: fuel believed to remain aboard
One of three wrecks currently treated as most at risk of leaking. No active leak is listed. Divers and boat crews are asked to report any sheen, bubbling or fuel odour near the site.
Seen oil or damage at the Kiyosumi Maru?
Report it with this wreck already selected. For an emergency, call Chuuk Police Emergency 911 (24/7) or Chuuk State EPA +691 330 4158 (Mon to Fri, 9am to 5pm (ChST)).
