| Shipwrecks |
- 4 Jan: HMHS Rewa, Racoon
- 5 Jan: War Baron
- 9 Jan: SM UB-69
- 12 Jan: HMS Narborough, HMS Opal
- 14 Jan: HMS G8
- 19 Jan: HMS H10, SM UB-22
- 20 Jan: HMS M28, Midilli, HMS Raglan, Warspite
- 21 Jan: HMS Louvain
- 24 Jan: Corse
- 25 Jan: Normandy
- 26 Jan: USS Guinevere, SM U-84, SM UB-35, SS Cork
- 27 Jan: Andania
- 28 Jan: HMS E14, HMS Hazard, SM U-109
- 31 Jan: HMS K4, HMS K17
- Unknown date: SM U-93, SM U-95, SM UB-63, SM UB-66
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