⚓ Shipwrecks Map

USS Indianapolis 1945

USS Indianapolis underway at sea on 27 September 1939
Image: Unknown authorUnknown author, Public domain, via Wikimedia Commons

Marker: recorded wreck position (Second World War).

Key facts

NameUSS IndianapolisWikidata label
Year lost1945Wikidata P793 significant event, point-in-time qualifier
EraSecond World Warderived from year
Ship typeheavy cruiserWikidata P31 instance of
Cause of lossWar actionKeyword match in English Wikipedia lead sentence
Nationality / flagUnited StatesWikidata P8047 country of registry
OperatorUnited States NavyWikidata P137 operator
ConflictWorld War IIWikidata P607 conflict
Sea / oceanPhilippine SeaNatural Earth marine areas (public domain), point-in-polygon
Position12.0333, 134.8000Wikidata P625 coordinate location (CC0)

About the wreck

USS Indianapolis (CL/CA-35) was a Portland-class heavy cruiser of the United States Navy, named for the city of Indianapolis, Indiana. Launched in 1931, she was the flagship of the commander of Scouting Force 1 for eight years, then flagship for Admiral Raymond Spruance from 1943 to 1945 while he commanded the Fifth Fleet in battles across the Central Pacific during World War II.

In July 1945, Indianapolis completed a top-secret high-speed trip to deliver uranium and other components for "Little Boy", the first nuclear weapon used in combat, to the Tinian Naval Base, and subsequently departed for the Philippines on training duty. At 0015 on 30 July, the ship was torpedoed by the Imperial Japanese Navy submarine I-58, and sank in 12 minutes.

Of 1,195 crewmen aboard, about 300 went down with the ship. The remaining 890 faced exposure, dehydration, saltwater poisoning, and shark attacks while stranded in the open ocean, with few lifeboats and almost no food or water.

Diving & visiting

The wreck of Indianapolis is in the Philippine Sea. In July–August 2001, an expedition sought to find the wreckage through the use of side-scan sonar and underwater cameras mounted on a remotely operated vehicle. Four Indianapolis survivors accompanied the expedition, which was not successful. In June 2005, a second expedition was mounted to find the wreck. National Geographic covered the story and released it in July. Submersibles were launched to find any sign of wreckage, although they only located pieces of metal that were not proven conclusively to be from the ship.

In July 2016, new information emerged regarding the possible location of Indianapolis when naval records were discovered indicating that the tank landing ship LST-779 recorded passing by Indianapolis…

The USS Indianapolis Museum had its grand opening on 7 July 2007, with its gallery in the Indiana War Memorial Museum at the Indiana World War Memorial Plaza.

Location

  • Recorded position: 12.0333, 134.8000 (Wikidata P625 coordinate location (CC0); may be approximate)
  • Sea / ocean: Philippine Sea

Wreck positions on this site are for interest only and are not for navigation. Many wrecks are war graves or legally protected: never disturb human remains or remove artefacts, and check local law before diving.

OpenStreetMap

Text adapted from the Wikipedia article USS Indianapolis (CA-35) (revision 1379986094), licensed under CC BY-SA 4.0. Changes: excerpted from the article lead section and section(s) “Wreck discovery”, “Memorials”; condensed by selecting paragraphs and trimming at sentence boundaries; citations and formatting removed. No text added. This excerpt is available under the same licence.

Wreck facts from Wikidata (CC0).

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Further reading