At dawn, Shokaku launched 17 A6M fighters for combat air patrol duties. At 1100 hours, she recovered 10 fighters; while still recovering fighters, at 1122, she was hit by three torpedoes from USS Cavalla on the starboard side; two forward near the switchboard and generator room, one aft of amidships. Large fuel fires were ignited in the hangar and No. 1 boiler room went offline. Shokaku remained underway, but began to list to starboard. Counterflooding over-compensated, giving her a port list. Meanwhile flooding and heat of the fires forced shutting down of the boiler rooms. She continued to settle forward. Though damage control initially hoped to save her, the flooding forward and the fires intensify in the following hours. By 1210 hours she had come to a halt when fires detonate an aerial bomb on the hangar, setting off volatile gases from a cracked forward tank. Large induced explosions wrecked the carrier, and hope began to fade. The list to port and bow trim both increased. At 1350 hours, her strike planes returned, but were ordered away, having to be directed to Zuikaku and Taiho. At this time Captain Matsubara had ordered abandon ship and the crew mustered on the flight deck for flag lowering. However, before the evacuation can proceed far, the bow dipped under and water pours into No. 1 elevator well, causing the carrier to corkscew to port and up-end. She went down by the bow at 1401 hours, stern raised high. Between 1408 and 1411, four underwater explosions were registered. 58 officers, 830 petty officers and men, 376 members of Air Group 601, and 8 civilians were killed, totalling 1,272 deaths. Light cruiser Yahagi and destroyers Urakaze and Hatsuzuki rescued Captain Hiroshi Matsubara among 570 other survivors Tabular Record of Movement
