| Shipwrecks |
- 2 Jan: Yu 1
- 4 Jan: USS Ommaney Bay, Lewis L. Dyche
- 5 Jan: Ha-71, Ha-82, Kanko Maru, Momi, Isaac Shelby, Shunsen Maru, Yu 3
- 6 Jan: USS Long, S-4
- 7 Jan: USS Hovey, USS Palmer
- 9 Jan: Cha-216, Kuroshio Maru, U-679, U-1020
- 11 Jan: Hakuyo Maru, T-76 Kotall
- 12 Jan: CD-17, CD-19, CD-23, CD-35, CD-43, CD-51, Ikutagawa Maru, Kashii, Lamotte-Picquet, Louhi, M-1, Otowa Maru, PB-103, USS Swordfish, T.140, W-101
- 14 Jan: I-362
- 15 Jan: Claus Rickmers, Hatakaze, Tsuga, USS YP-73
- 16 Jan: Deyatelny, Donau, U-248
- 17 Jan: U-2515, U-2523, U-2530
- 19 Jan: HMS Porpoise
- 21 Jan: U-1199
- 22 Jan: Saga
- 23 Jan: I-48
- 24 Jan: Empire Rupert, USS Extractor, Shigure
- 26 Jan: HMS Manners, U-1051
- 27 Jan: U-1172
- 28 Jan: Sanuki Maru
- 29 Jan: USS Serpens, U-763
- 30 Jan: USS Pontiac, Wilhelm Gustloff
- 31 Jan: Berlin III, USS PC-1129, U-2520
- Unknown date: Christian Radich, U-382, U-480, U-650, U-1020
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