| Shipwrecks |
- 2 Oct: Keltier
- 3 Oct: Burutu, SMS G41
- 4 Oct: HMS L10, SM UB-68, Oceania
- 5 Oct: USS Mary Alice, SM UB-10, SM UB-40, SM UB-59, SM UC-4
- 6 Oct: HMS C12, HMS Otranto
- 7 Oct: USS West Gate
- 10 Oct: Leinster, Senator Schröder
- 15 Oct: HMS J6
- 16 Oct: Dumaru, SM UB-90
- 19 Oct: HMS Plumpton, SM UB-123
- 20 Oct: HMS M21
- 21 Oct: USS Cero, SM UB-89
- 23 Oct: HMS D1
- 25 Oct: Princess Sophia
- 27 Oct: SM U-78
- 28 Oct: USS Tarantula, SM U-47, SM U-65, SM UB-48, SM UB-116, SM UC-25, SM UC-53, SM UC-54
- 30 Oct: HMCS Galiano, SM U-73, SM UC-34
- 31 Oct: SM UB-129
- Unknown date: SMS Brugge, HMS G7, SM U-34
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