The bomb was later dropped on the Japanese city of Hiroshima.
"While our search for the rest of the wreckage will continue, I hope everyone connected to this historic ship will feel some measure of closure at this discovery so long in coming," Allen said in a statement.
The Indianapolis' mission was so secret she sailed alone, unescorted by ships better equipped to detect and fight Japanese submarines.
Thirty-eight of the 317 men who survived the ship's July 1945 sinking and five days in the Pacific's shark-infested waters are still alive, but they're now in their late 80s and early 90s and many use wheelchairs.
Harold Bray, an 86-year-old from Benicia, Calif., said he and the 14 other survivors attending this year's reunion decided Friday that any future gatherings will be smaller and less frequent because so many of the survivors are in poor health.'We decided to stay together until the last guy's standing, but the goal is to continue at a smaller scale,' said Bray, chairman of the USS Indianapolis Survivors Organization.
Historians and architects from the Naval History and Heritage Command in Washington, District of Columbia, had joined forces with Allen last year to revisit the tragedy.
The ship sank in 15 minutes on July 30, 1945, in the war's final days, and it took the Navy four days to realise that the vessel was missing.
The Indianapolis sent several SOS signals before it became submerged, but the message wasn't taken seriously.
Nor did Navy officials take much notice when the ship failed to arrive at its destination on time.The team was able to develop a new estimated position, although it still covered 600 square miles of open ocean.The ship is an official war grave, which means it is protected by law from disturbances.And while they’ve been dating for a considerable stretch, the author – who is on her Picking Up the Pieces tour through May – says they made a point of keeping it under wraps in the beginning. “We’re not people to go out on ‘the scene.'” Indeed, the singer, 41, and the Indianapolis Colts quarterback, 33, kept their romance private until casually making it Instagram official in January, when Jewel posted a shot of herself with Whitehurst and Had the best day today. A post shared by Jewel (@jewel) on Dating Whitehurst is the first time Jewel has taken a relationship public since she and rodeo cowboy ex Ty Murray announced their split in [email protected] And I went to Necker Island for a short visit and lunch – hung with the Lemur (pics to follow) then hung at the very top of the big house … Jewel and Murray, 46, have remained amicable since their divorce, as they continue to co-parent their son, 4½-year-old Kase.The shipwreck's location had eluded researchers for decades. signal were forgotten by surviving radio operators and were not received by Navy ships or shore stations, the Navy command said.