List of shipwrecks in October 1918

The list of shipwrecks in October 1918 includes ships sunk, foundered, grounded, or otherwise lost during October 1918.

1 October

{{shipwreck list item

|ship={{SS|Aldebaran|1883|2}}

|flag={{flag|Sweden}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean {{convert|7|nmi|km}} off the Wolf Rock, Cornwall, United Kingdom ({{coord|49|54|N|5|59|W}}) by {{SMU|UB-112||6}} ({{navy|German Empire}}) with the loss of all nineteen crew.{{cite web |url=http://uboat.net/wwi/ships_hit/168.html |title=Aldebaran |publisher=Uboat.net |access-date=15 November 2012}}{{cite book |title=Svenska handelsflottans krigsförluster 1914-1920 |trans-title=Swedish Merchant Marine War losses 1914-1920 |language=Swedish |location=Stockholm |publisher=Kommerskollegium (Swedish Board of Trade) |year=1921 |pages=419–20}}

}}

{{shipwreck list item

|ship={{SS|Bylands|1899|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was shelled and sunk in the Atlantic Ocean {{convert|150|nmi|km}} north-northwest of Cape Villano, Spain by {{SMU|U-139||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/1013.html |title=Bylands |publisher=Uboat.net |access-date=26 October 2012}}{{cite web |url=http://www.naval-history.net/WW1LossesBrMS1918.htm |title= British Merchant Ships Lost to Enemy Action Part 3 of 3 - September 1917-November 1918 in date order |publisher=Naval History |access-date=27 January 2013}}

}}

{{shipwreck list item

|ship={{SS|Francoli|1865|2}}

|flag={{Flag|Spain|civil-1785}}

|desc=World War I: The cargo ship was shelled and sunk in the Mediterranean Sea {{convert|14|nmi|km}} east of Cape Palos, Murcia by {{SMU|UB-49||6}} ({{navy|German Empire}}). Her fourteen crew were rescued by a French merchant vessel.{{cite web |url=http://uboat.net/wwi/ships_hit/2269.html |title=Francoli |publisher=Uboat.net |access-date=9 November 2012}}{{Cite newspaper The Times |title=Spanish ship sunk. |date=5 October 1918 |page=6 |issue=41913 |column=E}}

}}

{{shipwreck list item

|ship=Giuseppino M.

|flag={{flagcountry|Kingdom of Italy|civil}}

|desc=World War I: The sailing vessel was sunk in the Gulf of Salerno by {{SMU|UC-53||6}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/2497.html |title=Giuseppino M. |publisher=Uboat.net |access-date=19 December 2012}}

}}

{{shipwreck list item

|ship={{SS|Gjertrud||2}}

|flag={{flag|Norway}}

|desc=World War I: The coaster was sunk in the Atlantic Ocean {{convert|2|nmi|km}} west of The Lizard, Cornwall by {{SMU|UB-112||6}} ({{navy|German Empire}}) with the loss of eleven of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/2501.html |title=Gjertrud |publisher=Uboat.net |access-date=15 November 2012}}

}}

{{shipwreck list item

|ship={{SS|Manin|1900|2}}

|flag={{flagcountry|Kingdom of Italy|civil}}

|desc=World War I: The cargo ship was sunk in the Atlantic Ocean {{convert|150|nmi|km}} north north west of Cape Villano by {{SMU|U-139||6}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/3871.html |title=Manin |publisher=Uboat.net |access-date=26 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Montfort|1899|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: Convoy OD 128: The cargo ship was torpedoed and damaged in the Atlantic Ocean {{convert|170|nmi|km}} west south west of the Bishop Rock, Isles of Scilly ({{coord|48|00|N|10|20|W}}) by {{SMU|U-55||6}} ({{navy|German Empire}}) with the loss of five crew. She sank the next day.{{cite web |url=http://uboat.net/wwi/ships_hit/4234.html |title=Montfort |publisher=Uboat.net |access-date=11 October 2012}}

}}

{{shipwreck list item

|ship=S. Giuseppe A.

|flag={{flagcountry|Kingdom of Italy|civil}}

|desc=World War I: The sailing vessel was sunk in the Gulf of Salerno by {{SMU|UC-53||6}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/5399.html |title=S. Giuseppe A. |publisher=Uboat.net |access-date=19 December 2012}}

}}

{{shipwreck list item

|ship={{USS|SC-60}}

|flag={{naval|USA|1917}}

|desc=The submarine chaser sank in {{convert|45|ft|m|0}} of water after colliding with the tanker {{SS|Fred W. Waller||2}} ({{flag|United States|1912}}) off New York City. Two members of her crew were killed.{{Harvnb|Friedman|1987|p=469}}{{cite DANFS|title=SC-1 - SC-100 |url= https://www.history.navy.mil/research/histories/ship-histories/danfs/s/sc-1-sc-100v1.html |accessdate=8 March 2019}}{{cite web |title=Hull Number: SC 60 |work=The Subchaser Archives|date=27 April 2007 |url=https://www.subchaser.org/sc60 |access-date=8 March 2019}}{{Cite web |url=https://njscuba.net/sites/site_warships.php#SC60 |title=njscuba.net Sub Chaser SC-60 |access-date=2020-02-19 |archive-date=2020-02-21 |archive-url=https://web.archive.org/web/20200221044204/http://njscuba.net/sites/site_warships.php#SC60 |url-status=dead }}

}}

{{shipwreck list item

|ship=Thèrese et Marthe

|flag={{flag|France}}

|desc=World War I: The fishing vessel was sunk in the Bay of Biscay ({{coord|46|36|N|2|38|W}}) by {{SMU|U-91}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/7519.html |title=Therese et Marie |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship={{ship|Soviet gunboat|Vanya||2}}

|flag={{navy|Soviet Union}} Red Movement

|desc=Russian Civil War: The gunboat was shelled by artillery and White ships, plus fired on by infantry, and sunk on the Kama River. 30 crewman were killed including her commanding officer, 48 were rescued.{{cite web |url=http://www.soviet-empire.com/ussr/viewtopic.php?f=149&t=53513&sid=4602ec483d071ff77de174d0dab67939 |title=Soviet Naval Battles during Civil War (Redone) |publisher=Soviet-Empire |access-date=22 May 2018}}

}}

2 October

{{shipwreck list item

|ship={{HMS|Arca|1912|6}}

|flag={{Navy|UK}}

|desc=World War I: The tanker was torpedoed and sunk in the Atlantic Ocean {{convert|40|nmi|km}} north west by west of Tory Island, County Donegal ({{coord|55|45|N|7|35|W}}) by {{SMU|U-118||6}} ({{navy|German Empire}}) with the loss of 52 crew.{{cite web |url=http://uboat.net/wwi/ships_hit/408.html |title=Arca |publisher=Uboat.net |access-date=26 October 2012}}{{cite web |url=http://www.naval-history.net/WW1LossesBrRNA-L.htm |title=British Naval Vessels Lost at Sea Part 1 of 2 - Abadol (oiler) to Lynx (destroyer) |publisher=Naval History |access-date=2 February 2013}}

}}

{{shipwreck list item

|ship=Avé Marie Stella

|flag={{flag|France}}

|desc=World War I: The fishing vessel was shelled and sunk in the Bay of Biscay ({{Coord|45|59|N|2|14|W}}) by {{SMU|U-91||6}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/7522.html |title=Ave Marie Stella |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Bamse|1881|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was torpedoed and sunk in the English Channel {{convert|5|nmi|km}} east of The Lizard, Cornwall by {{SMU|UB-112||6}} ({{navy|German Empire}}) with the loss of eleven of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/622.html |title=Bamse |publisher=Uboat.net |access-date=15 November 2012}}

}}

{{shipwreck list item

|ship={{SS|Keltier||2}}

|flag={{flag|Belgium}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean ({{coord|46|16|N|9|52|W|type:event|name=SS Keltier}}) by {{ship|SM|U-55||2}} ({{navy|German Empire}}). The crew took to the lifeboats but were not recovered.{{cite web|url=http://www.belgischekoopvaardij.net/belgian%20merchant%20H-O%2024.5.04.pdf |title=Belgian Merchant H-O |publisher=Belgische Koopvaardij |access-date=31 October 2010}}{{dead link|date=May 2017 |bot=InternetArchiveBot |fix-attempted=yes}}{{cite web |url=http://uboat.net/wwi/ships_hit/3285.html |title=Keltier |publisher=Uboat.net |access-date=11 October 2012}}

}}

{{shipwreck list item

|ship={{ship||Maia|schooner|2}}

|flag={{flag|France}}

|desc=World War I: The schooner was shelled and sunk in the Bay of Biscay ({{coord|45|25|N|1|48|W}}) by {{SMU|U-91||6}} ({{navy|German Empire}}) with the loss of two of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/7520.html |title=Maia |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship=Marie Emmanuel

|flag={{flag|France}}

|desc=World War I: The fishing vessel was shelled and sunk in the Bay of Biscay south of the Île d'Yeu, Finistère ({{coord|46|33|N|2|23|W}}) by {{SMU|U-91||6}} ({{navy|German Empire}}) with the loss of five of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/7521.html |title=Marie Emmanuel |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship=Pioneer

|flag={{flag|United States|1912}}

|desc=With no one on board, the 12-gross register ton, {{convert|45.9|ft|m|1|adj=on}} motor vessel was wrecked on Katalla Bar, a shoal off Katalla, Territory of Alaska. The wreck was not reported until 1926.[https://alaskashipwreck.com/shipwrecks-a-z/alaska-shipwrecks-p/ alaskashipwreck.com Alaska Shipwrecks (P)]

}}

{{shipwreck list item

|ship={{SS|Poljames|1872|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The coaster was torpedoed and sunk in the English Channel {{convert|6|nmi|km}} south of The Lizard by {{SMU|UB-112||6}} ({{navy|German Empire}}) with the loss of thirteen of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/4839.html |title=Poljames |publisher=Uboat.net |access-date=15 November 2012}}

}}

{{shipwreck list item

|ship=Rio Cávado

|flag={{flag|Portugal}}

|desc=World War I: The sailing vessel was sunk in the Atlantic Ocean {{convert|290|nmi|km}} off Cape Prior, Spain by {{SMU|U-139||6}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/5129.html |title=Rio Cávado |publisher=Uboat.net |access-date=26 October 2012}}

}}

{{shipwreck list item

|ship={{SMS|Z}}

|flag={{Navy|German Empire}}

|desc=World War I: The barracks ship was scuttled at Bruges, West Flanders, Belgium.}}

3 October

{{shipwreck list item

|ship={{SS|Alberto Treves|1900|2}}

|flag={{flagcountry|Kingdom of Italy|civil}}

|desc=World War I: The cargo ship was sunk in the Atlantic Ocean {{convert|300|nmi|km}} off the coast of the United States by {{SMU|U-155}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/156.html |title=Alberto Treves |publisher=Uboat.net |access-date=27 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Ariel|1902|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: Convoy BG 68: The cargo ship was torpedoed and sunk in the Mediterranean Sea {{convert|54|nmi|km}} north of Cape Ténès, Algeria ({{coord|37|36|N|1|08|E}}) by {{SMU|UB-105}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/443.html |title=Ariel |publisher=Uboat.net |access-date=15 November 2012}}

}}

{{shipwreck list item

|ship={{SS|Atlantis|1906|2}}

|flag={{flag|Norway}}

|desc=World War I: The cargo ship was sunk in the English Channel {{convert|6|nmi|km}} south east of The Lizard, Cornwall, United Kingdom by {{SMU|UB-112}} ({{navy|German Empire}}) with the loss of two of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/532.html |title=Atlantis |publisher=Uboat.net |access-date=15 November 2012}}

}}

{{shipwreck list item

|ship=Blasios

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Aegean Sea by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/833.html |title=Blasios |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship={{SS|Burutu|1902|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=The ocean liner collided with another vessel and sank with heavy loss of life, at least 170 people were killed.{{Cite newspaper The Times |title=British steamer sunk in collision. |date=7 October 1918 |page=5 |issue=41914 |column=B}}{{Cite newspaper The Times |title=Heavy death-roll in sunk liner |date=8 October 1918 |page=5 |issue=41915 |column=D}}

}}

{{shipwreck list item

|ship={{SS|Eupion|1914|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The tanker was torpedoed and sunk in the River Shannon by {{SMU|UB-90}} ({{navy|German Empire}}) with the loss of eleven of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/2067.html |title=Eupion |publisher=Uboat.net |access-date=13 November 2012}}

}}

{{shipwreck list item

|ship={{SMS|G41}}

|flag={{navy|German Empire}}

|desc=World War I: The {{sclass|V25|torpedo boat}} was scuttled at Bruges, West Flanders, Belgium.

}}

{{shipwreck list item

|ship={{USS|Herman Frasch|ID-1617|6}}

|flag={{Navy|USA|1912}}

|desc=The collier collided with {{USS|George G. Henry|ID-1560|6}} ({{navy|USA|1912}}) in the Atlantic Ocean {{convert|110|nmi|km}} east of Cape Sable Island, Nova Scotia, Canada and sank with the loss of 24 of her 89 crew.{{cite DANFS |title=George G. Henry |url=http://www.hazegray.org/danfs/sp-id/id1560.htm | access-date = 4 May 2012}}{{cite DANFS |title=Herman Frasch |url=http://www.hazegray.org/danfs/sp-id/sp1617.htm | access-date = 4 May 2012}}

}}

{{shipwreck list item

|ship={{SS|Lake City||2}}

|flag={{flag|United States|1912}}

|desc= The steamer was sunk in a collision with {{SS|James McGee||2}} ({{flag|United States|1912}}) off American Shoal Light. Her master and 29 crewmen killed.{{cite web |url=https://babel.hathitrust.org/cgi/pt?id=mdp.39015073345368&view=1up&seq=20 |title=Annual report of the Supervising Inspector-general Steamboat-inspection Service, Year ending June 30, 1919 |publisher=Government Printing Office, Washington |via=Haithi Trust |access-date=14 August 2019}}

}}

{{shipwreck list item

|ship={{HMT|Lustring}}

|flag={{navy|UK}}

|desc=The naval trawler was lost on this date.

}}

{{shipwreck list item

|ship={{SMS|M}}

|flag={{Navy|German Empire}}

|desc=World War I: The barracks ship was scuttled at Bruges.

}}

{{shipwreck list item

|ship={{SMS|S33|1914|6}}

|flag={{navy|German Empire}}

|desc=World War I: The {{sclass|V25|torpedo boat}} was torpedoed and sunk in the North Sea by {{HMS|L10}} ({{navy|UK}}).{{cite web |url=http://www.worldwar1.co.uk/sunk18.htm |title=Major Warships Sunk in World War 1 1918 |publisher=World War I |access-date=24 February 2013}}

}}

{{shipwreck list item

|ship={{SMS|S34|1914|6}}

|flag={{navy|German Empire}}

|desc=World War I: The {{sclass|V25|torpedo boat}} struck a mine and sank in the North Sea with the loss of 70 of her crew.

}}

{{shipwreck list item

|ship={{SS|Saint Luc|1908|2}}

|flag={{flag|France}}

|desc=World War I: Convoy BG 68: The cargo ship was torpedoed and sunk in the Mediterranean Sea {{convert|48|nmi|km}} north of Cape Ténès ({{coord|37|43|N|1|35|E}}) by {{SMU|UB-105}} ({{navy|German Empire}}) with the loss of 29 of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/5329.html |title=Saint Luc|publisher=Uboat.net |access-date=15 November 2012}}

}}

{{shipwreck list item

|ship={{SMS|V74}}

|flag={{navy|German Empire}}

|desc=World War I: The {{sclass|V25|destroyer}} was scuttled at Bruges.

}}

{{shipwreck list item

|ship={{SS|Westwood|1907|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The collier was torpedoed and sunk in the Atlantic Ocean {{convert|5|nmi|km}} south west of The Lizard by {{SMU|UB-112}} ({{navy|German Empire}}) with the loss of a crew member.{{cite web |url=http://uboat.net/wwi/ships_hit/6516.html |title=Westwood |publisher=Uboat.net |access-date=15 November 2012}}

}}

4 October

{{shipwreck list item

|ship={{HMT|Coleus}}

|flag={{navy|UK}}

|desc=The naval trawler was lost on this date.

}}

{{shipwreck list item

|ship={{USS|Herman Frasch}}

|flag={{navy|United States|1912}}

|desc=The collier was sunk in a collision with the United States Navy chartered tanker {{SS|George D. Henry||2}} ({{flag|United States|1912}}) {{convert|150|mi}} south east of Nova Scotia. 24 people were killed and 36 rescued.{{Cite web |url=https://www.history.navy.mil/research/library/online-reading-room/title-list-alphabetically/c/casualties-usnavy-marinecorps-personnel-killed-injured-selected-accidents-other-incidents-notdirectly-result-enemy-action.html |title=Casualties: US Navy and Marine Corps Personnel Killed and Injured in Selected Accidents and Other Incidents Not Directly the Result of Enemy Action |publisher=history.navy.mil |date=7 May 2025}}{{Cite web |url=https://www.wrecksite.eu/wreck.aspx?58215 |title=Herman Frasch (1918) |publisher=Wrecksite |date=7 May 2025}}

}}

{{shipwreck list item

|ship={{SS|Hirano Maru|1908|2}}

|flag={{flagcountry|Empire of Japan}}

|desc=World War I: The passenger ship was sunk in the Atlantic Ocean {{convert|200|nmi|km}} south of Ireland by {{SMU|UB-91}} ({{navy|German Empire}}) with the loss of 292 of the 320 people on board.{{cite web |url=http://uboat.net/wwi/ships_hit/2866.html |title=Hirano Maru |publisher=Uboat.net |access-date=13 November 2012}}{{Cite newspaper The Times |title=Japanese steamer torpedoed. |date=11 October 1918 |page=8 |issue=41918 |column=D}} Some of the deceased were buried at Angle, Pembrokeshire, Wales. Many of the deceased were children.{{cite news|work=BBC News|title=WW1: New memorial for Pembrokeshire's Japanese dead|url=https://www.bbc.co.uk/news/uk-wales-45711060|access-date=4 October 2018}}

}}

{{shipwreck list item

|ship={{ship||Industrial|schooner|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The schooner was scuttled in the Atlantic Ocean {{convert|250|nmi|km}} south east of Nantucket Island, Massachusetts, United States ({{coord|37|57|N|66|41|W}}) by {{SMU|U-155||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/7499.html |title=Industrial |publisher=Uboat.net |access-date=27 October 2012}}

}}

{{shipwreck list item

|ship={{SMS|Johs. Thode}}

|flag={{navy|German Empire}}

|desc=The Vorpostenboot was lost on this date.

}}

{{shipwreck list item

|ship=Kassid Karim

|flag={{flag|Egypt|1888}}

|desc=World War I: The sailing vessel was shelled and sunk in the Mediterranean Sea {{convert|75|nmi|km}} north of Alexandria by an enemy submarine.

}}

{{shipwreck list item

|ship={{HMS|L10}}

|flag={{navy|UK}}

|desc=World War I: The L-class submarine was sunk in the Heligoland Bight by {{SMS|V28}} and {{SMS|V79}} (both {{navy|German Empire}}) with the loss of all 38 crew.

}}

{{shipwreck list item

|ship={{SS|Mercedes|1887|2}}

|flag={{flag|Spain|civil-1785}}

|desc=World War I: The cargo ship was sunk in the Atlantic Ocean off San Sebastián, Gipuzkoa ({{coord|43|25|N|1|59|W}}) by {{SMU|U-91||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/4083.html |title=Mercedes |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship={{HMS|M. J. Hedley}}

|flag={{navy|UK}}

|desc=The Q-ship capsized and sank on this date.{{cite web |url=http://www.naval-history.net/WW1LossesBrRNM-Z.htm |title=British Naval Vessels Lost at Sea Part 2 of 2 - M.15 (monitor) to Zylpha (Q-ship) |publisher=Naval History |access-date=12 February 2013}}{{cite web |url=http://www.gwpda.org/naval/rnqships.htm |title=Royal Navy 'Q' Ships |first=Cliff |last=McMullen |publisher=GWPDA |access-date=12 February 2013}}

}}

{{shipwreck list item

|ship={{SS|Nanna|1900|2}}

|flag={{flag|Norway}}

|desc=World War I: The cargo ship was sunk in the Atlantic Ocean {{convert|10|nmi|km}} west north west of The Lizard, Cornwall, United Kingdom by {{SMU|UB-112}} ({{navy|German Empire}}) with the loss of nine of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/4312.html |title=Nanna |publisher=Uboat.net |access-date=15 November 2012}}

}}

{{shipwreck list item

|ship={{SS|Oceania|1907|2}}

|flag={{flag|Austria-Hungary|civil}}

|desc=The ship struck a mine in the Adriatic Sea off Cape Rodoni, Albania and was abandoned. The wreck was torpedoed and sunk by {{ship|Austro-Hungarian torpedo boat|16||2}} ({{navy|Austria-Hungary}}).{{cite web |url=http://www.clydesite.co.uk/clydebuilt/abandoned-ships/OCEANIA_423.html |archive-url=https://web.archive.org/web/20150315055637/http://www.clydesite.co.uk/clydebuilt/abandoned-ships/OCEANIA_423.html |url-status=usurped |archive-date=15 March 2015 |title=OCEANIA |publisher=Clydesite |access-date=1 July 2016}}

}}

{{shipwreck list item

|ship={{SS|Oopack|1894|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea {{convert|110|nmi|km}} east of Malta ({{coord|35|56|N|16|20|E}}) by {{SMU|UB-68||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/4563.html |title=Oopack |publisher=Uboat.net |access-date=11 November 2012}}

}}

{{shipwreck list item

|ship={{SS|San Saba|1879|2}}

|flag={{flag|United States|1912}}

|desc=World War I: The cargo ship struck a mine and sank in the Atlantic Ocean off the Barnegat Lighthouse, New Jersey ({{coord|39|40|N|73|55|W}}) with the loss of 30 crew.{{cite web |url=http://uboat.net/wwi/ships_hit/5417.html |title=San Saba |publisher=Uboat.net |access-date=26 October 2012}}

}}

{{shipwreck list item

|ship={{SMU|UB-68||6}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UB III submarine was shelled and sunk in the Mediterranean Sea ({{coord|33|56|N|16|20|E}}) with the loss of one of her 34 crew.{{cite web |url=http://uboat.net/wwi/boats/index.html?boat=UB+68 |title=UB 68|publisher=Uboat.net |access-date=11 November 2012}}

}}

{{shipwreck list item

|ship={{ship||Uranus|brigantine|2}}

|flag=25px Russia

|desc=World War I: The brigantine was scuttled in the Atlantic Ocean south west of the Isles of Scilly, United Kingdom ({{coord|46|42|N|12|23|W}} by {{SMU|U-55}} ({{navy|German Empire}}). Her crew took to the lifeboats, but were not recovered.{{cite web |url=http://uboat.net/wwi/ships_hit/6218.html |title=Uranus |publisher=Uboat.net |access-date=11 October 2012}}}}

5 October

{{shipwreck list item

|ship={{ship|German trawler|Bremerhaven||2}}

|flag={{navy|German Empire}}

|desc=World War I: The Greta-class Vorpostenboot was sunk by four Royal Navy torpedo boats {{convert|119|nmi|lk=in}} off Helgoland.

}}

{{shipwreck list item

|ship={{SS|Erindring|1901|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was sunk in the Bay of Biscay ({{coord|43|27|N|2|24|W}}) by {{SMU|U-91}} ({{navy|German Empire}}) with the loss of all 22 crew.{{cite web |url=http://uboat.net/wwi/ships_hit/7427.html |title=Erindring |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Gelderland||2}}

|flag={{flagcountry|German Empire}}

|desc=World War I: The cargo ship was scuttled at Bruges, West Flanders, Belgium.

}}

{{shipwreck list item

|ship=Hagios Marcos

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/2673.html |title=Hagios Marcos |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship={{SS|Heathpark|1917|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was sunk in the Bay of Biscay ({{coord|43|27|N|2|18|W}}) by {{SMU|U-91}} ({{navy|German Empire}}) with the loss of all eighteen crew.{{cite web |url=http://uboat.net/wwi/ships_hit/2773.html |title=Heathpark |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship={{ship||Maria|schooner|2}}

|flag={{flag|Spain|civil-1785}}

|desc=World War I: The schooner was torpedoed and sunk in the Gulf of Salonica.{{cite web |url=http://www.belgischekoopvaardij.net/belgian%20merchant%20A-G%2023.5.04.pdf |title=Belgian Merchant A-G |publisher=Belgische Koopvaardij |access-date=1 October 2010}}{{dead link|date=January 2018 |bot=InternetArchiveBot |fix-attempted=yes}}

}}

{{shipwreck list item

|ship={{SS|Maria|1881|2}}

|flag={{flag|Spain|civil-1785}}

|desc=World War I: The cargo ship was sunk in the Gulf of Salonica ({{coord|39|58|N|23|07|E}}) by {{SMU|UC-23}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/7122.html |title=Maria |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Marigo

|flag={{flag|France}}

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/7133.html |title=Marigo |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship={{USS|Mary Alice|SP-397|6}}

|flag={{navy|USA|1912}}

|desc=The patrol vessel was rammed and sunk in the long Island Sound off Bridgeport, Connecticut by {{USS|O-13|SS-74|6}} ({{navy|USA|1912}}). Her crew were rescued by USS O-13.{{cite web |url=http://www.usmm.org/ww1navy.html |title=U. S. Navy Ships Sunk or Damaged from Various Causes during World War I |publisher=usmm.org |access-date=24 April 2021}}

}}

{{shipwreck list item

|ship={{SS|Reventazon|1906|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Gulf of Salonica {{convert|14|nmi|km}} west by south of Kassandra Point, Greece by {{SMU|UC-23}} ({{navy|German Empire}}) with the loss of fifteen of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/5097.html |title=Reventazon |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship={{SS|Rio Pardo|1905|2}}

|flag={{flagcountry|German Empire}}

|desc=World War I: The cargo ship was scuttled at Bruges.

}}

{{shipwreck list item

|ship={{SMS|T122}}

|flag={{navy|German Empire}}

|desc=World War I: The {{sclass|S90|torpedo boat}} struck a mine and sank in the North Sea with the loss of twelve of her crew.

}}

{{shipwreck list item

|ship={{SMU|UB-10||6}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UB I submarine was scuttled in the North Sea off Zeebrugge, West Flanders, Belgium ({{coord|51|21|N|3|12|E}}).

}}

{{shipwreck list item

|ship={{SMU|UB-40||6}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UB II submarine was scuttled in the North Sea off Ostend, West Flanders, Belgium.

}}

{{shipwreck list item

|ship={{SMU|UB-59||6}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UB III submarine was scuttled in the North Sea off Zeebrugge ({{coord|51|19|N|3|12|E}}).{{cite web |url=http://uboat.net/wwi/boats/index.html?boat=UB+59 |title=UB 59 |publisher=Uboat.net |access-date=11 November 2012}}

}}

{{shipwreck list item

|ship={{SMU|UC-4||6}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UC I submarine was scuttled in the North Sea off the coast of West Flanders ({{coord|51|22|N|3|12|E}}).

}}

6 October

{{shipwreck list item

|ship={{HMS|C12}}

|flag={{navy|UK}}

|desc=The C-class submarine collided with a destroyer in the Humber Estuary and sank. She was subsequently raised, repaired and returned to service.

}}

{{shipwreck list item

|ship={{HMS|Otranto}}

|flag={{navy|UK}}

|desc=The armed merchant cruiser collided with {{HMS|Kashmir|1915|6}} ({{navy|UK}}) in the Atlantic Ocean northeast of Ireland and was holed. She was driven ashore and wrecked with the loss of 431 lives.}}

7 October

{{shipwreck list item

|ship={{HMT|Kalmia}}

|flag={{navy|UK}}

|desc=The naval trawler was lost in the Mediterranean Sea on this date.

}}

{{shipwreck list item

|ship={{SS|Madeira|1897|2}}

|flag={{flag|Portugal}}

|desc=World War I: The cargo ship was sunk in the Mediterranean Sea off San Pietro Island, Italy by {{SMU|UB-105||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/3806.html |title=Madeira |publisher=Uboat.net |access-date=15 November 2012}}

}}

{{shipwreck list item

|ship={{HMT|Ocean Foam}}

|flag={{navy|UK}}

|desc=The naval trawler was lost on this date.

}}

{{shipwreck list item

|ship={{SS|Saint Barnabe|1912|2}}

|flag={{flag|France}}

|desc=World War I: The cargo ship was sunk in the Mediterranean Sea {{convert|38|nmi|km}} east of San Pietro Island by {{SMU|UB-105||6}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/5307.html |title=Saint Barnabe |publisher=Uboat.net |access-date=15 November 2012}}

}}

{{shipwreck list item

|ship={{ship|Russian gunboat|Trud||2}}

|flag={{navy|Russia}} White Movement

|desc=Russian Civil War: The gunboat was sunk on the Kama River by mines.{{cite web |url=http://www.soviet-empire.com/ussr/viewtopic.php?f=149&t=53513&sid=4602ec483d071ff77de174d0dab67939 |title=Soviet Naval Battles during Civil War (Redone) |publisher=Soviet-Empire |access-date=22 May 2018}}

}}

{{shipwreck list item

|ship={{USS|West Gate|ID-3216|6}}

|flag={{navy|USA|1912}}

|desc=The cargo ship collided with {{USS|American|ID-2292|6}} ({{navy|USA|1912}}) in the Atlantic Ocean {{convert|250|nmi|km}} south east of Halifax, Nova Scotia, Canada and sank with the loss of seven crew.{{cite web |url=http://www.usmm.org/ww1navy.html |title=U. S. Navy Ships Sunk or Damaged from Various Causes during World War I |publisher=usmm.org |access-date=24 April 2021}}

}}

8 October

{{shipwreck list item

|ship={{SS|Cazengo|1889|2}}

|flag={{flag|Portugal}}

|desc=World War I: The cargo ship was sunk in the Bay of Biscay off Saint-Jean-de-Luz, Basses-Pyrénées, France ({{coord|44|16|N|1|20|W}}) by {{SMU|U-91||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/1181.html |title=Cazengo |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship={{ship||Hawanee|schooner|2}}

|flag={{Flagcountry|UKGBI|civil}}

|desc=World War I: The schooner was scuttled in the Atlantic Ocean {{convert|350|nmi|km}} off Cape Finisterre, Spain ({{coord|42|55|N|7|41|W}}) by {{SMU|U-157||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/7639.html |title=Hawanee |publisher=Uboat.net |access-date=27 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Thalia|1916|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was torpedoed and sunk in the North Sea {{convert|4|nmi|km}} east south east of Filey, Yorkshire by {{SMU|UC-17||6}} ({{navy|German Empire}}) with the loss of three of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/5965.html |title=Thalia |publisher=Uboat.net |access-date=25 November 2012}}}}

9 October

{{shipwreck list item

|ship={{ship||Pierre|schooner|2}}

|flag={{flag|France}}

|desc=World War I: The three-masted schooner was shelled and sunk in the Bay of Biscay ({{coord|43|49|N|1|34|W}}) by {{SMU|U-91}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/7518.html |title=Pierre |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship= {{USS|SC-219}}

|flag={{navy|United States|1912}}

|desc=The {{sclass|SC-1|submarine chaser}} sank in the mid-Atlantic Ocean between Bermuda and the Azores due to an explosion and fire while refueling alongside {{USS|Chestnut Hill|ID-2526|6}}. 4 people were killed, and 8 wounded.{{cite web |url=http://www.usmm.org/ww1navy.html |title=U. S. Navy Ships Sunk or Damaged from Various Causes during World War I |publisher=usmm.org |access-date=24 April 2021}}{{cite web |url=http://www.navsource.org/archives/12/150219.htm |title=SC-219 |publisher=Navsourse |access-date=24 April 2021}}

}}

10 October

{{shipwreck list item

|ship=André

|flag={{flag|France}}

|desc=World War I: The sailing vessel was shelled and sunk in the Atlantic Ocean west of the Isles of Scilly, United Kingdom by {{SMU|U-55||6}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/6758.html |title=Andre |publisher=Uboat.net |access-date=11 October 2012}}

}}

{{shipwreck list item

|ship={{RMS|Leinster||2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The troopship was torpedoed and sunk in the Irish Sea ({{coord|53|19|N|5|47|W}}) by {{SMU|UB-123||6}} ({{navy|German Empire}}) with the loss of 523 lives.{{cite web |url=http://uboat.net/wwi/ships_hit/3552.html |title=Leinster |publisher=Uboat.net |access-date=16 November 2012}} Survivors were rescued by {{ship|HMY|Helga}}, {{HMS|Lively|1900|6}}, {{HMS|Mallard|1896|6}}, {{HMS|Seal|1897|6}} (all {{navy|UK}}).

}}

{{shipwreck list item

|ship={{SMS|Senator Schroder}}

|flag={{navy|German Empire}}

|desc=World War I: The Vorpostenboot was scuttled at Ostend, West Flanders, Belgium.

}}

11 October

{{shipwreck list item

|ship={{SS|Luksefjell|1889|2}}

|flag={{flag|Norway}}

|desc=World War I: The cargo ship was sunk in the Bay of Biscay {{convert|8|nmi|km}} west north west of Capbreton, Landes, France ({{coord|43|41|N|1|37|W}}) by {{SMU|U-91||6}} ({{navy|German Empire}}) with the loss of seven of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/3760.html |title=Luksefjell |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Maja|1883|2}}

|flag={{Flag|Sweden}}

|desc=World War I: The cargo ship was sunk in the Irish Sea {{convert|15|nmi|km}} east of Ardglass, County Down, United Kingdom by {{SMU|UB-126||6}} ({{navy|German Empire}}) with the loss of nine of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/3837.html |title=Maja |publisher=Uboat.net |access-date=16 November 2012}}{{cite book |title=Svenska handelsflottans krigsförluster 1914-1920 |trans-title=Swedish Merchant Marine War losses 1914-1920 |language=Swedish |location=Stockholm |publisher=Kommerskollegium (Swedish Board of Trade) |year=1921 |pages=421–3}}

}}

12 October

{{shipwreck list item

|ship={{USAT|Amphion}}

|flag={{flag|United States|1912|name=United States Army}}

|desc=World War I: The troopship was shelled and damaged in the Atlantic Ocean ({{coord|36|06|N|62|59|W}}) by {{SMU|U-155||6}} ({{navy|German Empire}}). with the loss of two of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/7709.html |title=Amphion |publisher=Uboat.net |access-date=27 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Laila|1890|2}}

|flag={{flag|Norway}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Irish Sea {{convert|6.5|nmi|km}} north of the Mull of Galloway, Wigtownshire, United Kingdom by {{SMU|UB-126||6}} ({{navy|German Empire}}) with the loss of seventeen of her crew{{cite web |url=http://uboat.net/wwi/ships_hit/7233.html |title=Laila |publisher=Uboat.net |access-date=16 November 2012}}

}}

{{shipwreck list item

|ship=Ohio

|flag={{flagcountry|Sweden}}

|desc=World War I: The cargo ship collided with another vessel and sank in the English Channel while in convoy. All 21 people on board were rescued by a Royal Navy destroyer,{{Cite newspaper The Times |title=Imperial and Foreign news items. |date=15 October 1918 |page=5 |issue=41921 |column=E}} but one of the crew later died in hospital.{{cite book |title=Svenska handelsflottans krigsförluster 1914-1920 |trans-title=Swedish Merchant Marine War losses 1914-1920 |language=Swedish |location=Stockholm |publisher=Kommerskollegium (Swedish Board of Trade) |year=1921 |pages=423–4}}

}}

{{shipwreck list item

|ship={{SS|Tripoli II|1880|2}}

|flag={{flagcountry|Kingdom of Italy|civil}}

|desc=World War I: The cargo ship was sunk in the Mediterranean Sea {{convert|20|nmi|km}} off Cape Passero, Sicily by {{SMU|UB-105||6}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/6122.html |title=Tripoli Ii |publisher=Uboat.net |access-date=15 November 2012}}}}

13 October

{{shipwreck list item

|ship=Aghion Spiridon

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/92.html |title=Aghion Spiridon |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Aghios Georgios

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/7312.html |title=Aghios Georgios |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Bioletta

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/802.html |title=Bioletta |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Evangelistria

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/6991.html |title=Evangelistria |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Evangelistrios

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/2080.html |title=Evangelistrios |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Glaros

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/2509.html |title=Glaros |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Hamidieh

|flag={{flag|Egypt|1888}}

|desc=World War I: the sailing vessel was shelled and sunk in the Mediterranean Sea {{convert|50|nmi|km}} north west of Alexandria by an enemy submarine.

}}

{{shipwreck list item

|ship=Iphigenia

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/3053.html |title=Iphigenia |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Panaghia

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/7256.html |title=Panaghia |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Urania

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/6216.html |title=Urania |publisher=Uboat.net |access-date=1 December 2012}}}}

14 October

{{shipwreck list item

|ship={{ship|NRP|Augusto de Castilho}}

|flag={{navy|Portugal}}

|desc=World War I: The naval trawler was sunk in the Atlantic Ocean {{convert|100|nmi|km}} south west of the Azores by {{SMU|U-139}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/550.html |title=Augusto De Castilho |publisher=Uboat.net |access-date=26 October 2012}}

}}

{{shipwreck list item

|ship=Bayard

|flag={{flag|France}}

|desc=World War I: The fishing vessel was sunk in the Bay of Biscay ({{coord|47|30|N|4|00|W}}) by {{SMU|U-91||6}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/7517.html |title=Bayard |publisher=Uboat.net |access-date=23 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Dundalk|1899|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The passenger ship was torpedoed and sunk in the Irish Sea {{convert|5|nmi|km}} north north west of The Skerries, Isle of Anglesey by {{SMU|U-90||6}} ({{navy|German Empire}}) with the loss of 21 lives.{{cite web |url=http://uboat.net/wwi/ships_hit/1747.html |title=Dundalk |publisher=Uboat.net |access-date=22 October 2012}}

}}

{{shipwreck list item

|ship={{SMS|M22}}

|flag={{navy|German Empire}}

|desc=World War I: The {{sclass|M1|minesweeper|2}} was sunk by mines in the North Sea.

}}

{{shipwreck list item

|ship={{ship||Stifinder|barque|2}}

|flag={{flag|Norway}}

|desc=File:Bark Stifinder.jpgWorld War I: The barque was scuttled in the Atlantic Ocean ({{coord|37|42|N|53|41|W}}) by {{SMU|U-152||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/5780.html |title=Stifinder |publisher=Uboat.net |access-date=26 October 2012}}}}

15 October

{{shipwreck list item

|ship={{USS|America|ID-3006|6}}

|flag={{navy|United States|1912}}

|desc= The cargo liner/troop ship sank at Hoboken, New Jersey. Raised, repaired and returned to service.{{cite web |url=https://research.mysticseaport.org/coll/coll001/ |title=Records of the T. A. Scott co. |date=20 May 2016 |publisher=mysticseaport.org |access-date=28 April 2021}}{{cite web |url=https://www.ibiblio.org/hyperwar/OnlineLibrary/photos/sh-usn/usnsh-a/id3006.htm |title=USS America (ID # 3006), 1917-1919. Originally the German passenger liner Amerika (1905-1917). Later the U.S. Army Transport America (1919-1920), the U.S. passenger liner America (1921-1940) and the U.S. Army Transport Edmund B. Alexander (1940-1957) |publisher=Ibiblio |access-date=28 April 2021}}

}}

{{shipwreck list item

|ship=Bretagne

|flag={{flag|France}}

|desc=World War I: The sailing vessel was sunk in the Atlantic Ocean by {{SMU|U-43|Germany|6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/7442.html |title=Bretagne |publisher=Uboat.net |access-date=7 October 2012}}

}}

{{shipwreck list item

|ship=HM CMB-71A

|flag={{navy|UK}}

|desc=The Coastal Motor Boat was lost on this date.

}}

{{shipwreck list item

|ship=Evangelistria

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica ({{coord|38|39|N|25|13|E}}) by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/6992.html |title=Evangelistria |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship=Georgios

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica ({{coord|38|42|N|25|21|E}}) by {{SMU|UC-23}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/7048.html |title=Georgios |publisher=Uboat.net |access-date=1 December 2012}}

}}

{{shipwreck list item

|ship={{HMS|J6}}

|flag={{navy|UK}}

|desc=World War I: The {{sclass2|J|submarine}} was shelled and sunk in the North Sea off the coast of Northumberland by the Q-ship {{HMS|Cymric}} ({{navy|UK}}), which mistook her pennant number J6 for U6 and assumed she was a U-boat. Fifteen of her 45 crew were lost.

}}

{{shipwreck list item

|ship=Maria

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Gulf of Salonica ({{coord|38|42|N|25|21|E}}) by {{SMU|UC-23}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/7123.html |title=Maria |publisher=Uboat.net |access-date=1 December 2012}}

}}

16 October

{{shipwreck list item

|ship={{SS|Dumaru||2}}

|flag={{flag|United States|1912}}

|desc=The cargo ship was struck by lightning, caught fire and sank in the Pacific Ocean {{convert|22|mi}} west of Guam whilst on her maiden voyage. 19 crewmen killed. Her captain and four crew were rescued.{{cite web |url=https://babel.hathitrust.org/cgi/pt?id=mdp.39015073345368&view=1up&seq=20 |title=Annual report of the Supervising Inspector-general Steamboat-inspection Service, Year ending June 30, 1919 |publisher=Government Printing Office, Washington |via=Haithi Trust |access-date=14 August 2019}}{{cite web |url=https://babel.hathitrust.org/cgi/pt?id=chi.103309030&view=1up&seq=528 |title=American Marine Engineer October, 1918 |publisher=National Marine Engineers Beneficial Association of the United States |via=Haithi Trust |access-date=28 September 2020}}

}}

{{shipwreck list item

|ship={{SS|Pentwyn|1910|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Irish Sea {{convert|20|nmi|km}} north east by north of the Smalls Lighthouse by {{SMU|U-90||6}} ({{navy|German Empire}}) with the loss of a crew member.{{cite web |url=http://uboat.net/wwi/ships_hit/4729.html |title=Pentwyn |publisher=Uboat.net |access-date=22 October 2012}}

}}

{{shipwreck list item

|ship={{SMU|UB-90}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UB III submarine was torpedoed and sunk in the Skagerrak ({{coord|57|55|N|10|27|E}}) by {{HMS|L12}} ({{navy|UK}}) with the loss of all 38 crew.{{cite web |url=http://uboat.net/wwi/boats/index.html?boat=UB+90 |title=UB 90 |publisher=Uboat.net |access-date=13 November 2012}}

}}

{{shipwreck list item

|ship={{SS|War Council||2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea {{convert|85|nmi|km}} west south west of Cape Matapan, Greece ({{coord|35|44|N|20|16|E}}) by {{SMU|U-63|Germany|6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/6441.html |title=War Council |publisher=Uboat.net |access-date=16 October 2012}}

}}

17 October

{{shipwreck list item

|ship={{SS|Bonvilston|1893|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Irish Sea {{convert|9.5|nmi|km}} north west by west of Corsewall Point, Wigtownshire by {{SMU|UB-92||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/859.html |title=Bonvilston |publisher=Uboat.net |access-date=13 November 2012}}

}}

{{shipwreck list item

|ship={{USS|Lucia|ID-3090|2}}

|flag={{flag|United States|1912}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean {{convert|1200|nmi|km}} off the coast of the United States ({{coord|38|50|N|50|50|W}}) by {{SMU|U-155||6}} ({{navy|German Empire}}) with the loss of four of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/3731.html |title=Lucia |publisher=Uboat.net |access-date=27 October 2012}} {{USS|Fairfax|DD-93|6}} ({{navy|United States|1912}}) rescued 86 survivors.[https://www.history.navy.mil/research/histories/ship-histories/danfs/f/fairfax.html Naval History and Heritage Command, Dictionary of American Naval Fighting Ships: Fairfax (Destroyer No. 93) 1918-1941]}}

18 October

{{shipwreck list item

|ship={{SS|Hunsdon|1911|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship was torpedoed and sunk in the Irish Sea ({{coord|54|19|N|5|27|W}}) by {{SMU|UB-94}} ({{navy|German Empire}}) with the loss of a crew member.{{cite web |url=http://uboat.net/wwi/ships_hit/2920.html |title=Hunsdon |publisher=Uboat.net |access-date=13 November 2012}}

}}

{{shipwreck list item

|ship={{ship|RFA|Industry}}

|flag={{navy|UK|RFA}}

|desc=World War I: The cargo ship was sunk in the Irish Sea by {{SMU|UB-92}} ({{navy|German Empire}}) with the loss of 21 of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/7458.html |title=Industry |publisher=Uboat.net |access-date=13 November 2012}}

}}

{{shipwreck list item

|ship={{SS|Linz||2}}

|flag={{flagcountry|Austria-Hungary}}

|desc=World War I: The passenger ship struck a mine and sank off Cape Rodoni, Albania. Around 600 people were killed in the sinking.{{csr|register=MSI|id=5607862 |shipname=Linz |accessdate=6 March 2016}}

}}

{{shipwreck list item

|ship=Njordur

|flag={{flagicon|Denmark}} Iceland

|desc=World War I: The trawler was sunk in the Atlantic Ocean ({{coord|57|02|N|10|58|W}}) by {{SMU|U-122}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/7497.html |title=Njordur |publisher=Uboat.net |access-date=26 October 2012}}

}}

{{shipwreck list item

|ship={{ship|ST|Oceana|1889|2}}

|flag={{flagcountry|UKGBI|government}}

|desc=The Admiralty tug was run into and sunk in Scapa Flow, Orkney Islands by {{ship|ST|Stobo Castle||2}} ({{flagcountry|UKGBI|government}}).{{cite web |url=http://www.jeanelaine.co.uk/text/NorthIslesDiving.htm#OceanaEday |title=Oceana Eday |publisher=Jeanelaine.co.uk |access-date=17 February 2013}}

}}

{{shipwreck list item

|ship={{SMU|U-34|Germany|6}}

|flag={{navy|German Empire}}

|desc=World War I: The Type U 31 submarine departed on patrol. Subsequently sunk off Gibraltar on or before 9 November with the loss of all 38 crew.

}}

{{shipwreck list item

|ship={{ship|French battleship|Voltaire||2}}

|flag={{navy|France}}

|desc=World War I: The {{sclass|Danton|battleship|2}} was torpedoed and damaged in the Aegean Sea of Milos, Greece by {{SMU|UB-48}} ({{navy|German Empire}}).

}}

{{shipwreck list item

|ship={{SS|West Oil||2}}

|flag={{flag|United States|1912}}

|desc=The tanker burned at Genoa, Italy. Later salvaged.{{cite web |url=http://www.usmm.org/ww1merchant.html |title=U.S. Merchant Ships, Sailing Vessels, and Fishing Craft Lost from all Causes during World War I |publisher=usmm.org |access-date=23 September 2020}}

}}

19 October

{{shipwreck list item

|ship=Aida

|flag={{flag|Portugal}}

|desc=World War I: The sailing vessel was sunk in the Atlantic Ocean off Brest, Finistère, France by {{SMU|U-43|Germany|6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/123.html |title=Aida |publisher=Uboat.net |access-date=7 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Almerian|1897|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The cargo ship struck a mine and sank in the Mediterranean Sea {{convert|13|nmi|km}} off Licata, Sicily ({{coord|37|11|N|13|39|E}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/216.html |title=Almerian |publisher=Uboat.net |access-date=19 October 2012}}

}}

{{shipwreck list item

|ship={{SS|John B. Astell||2}}

|flag={{flag|United States|1912}}

|desc= The tug sank at the Quartermasters Pier, South Boston, Massachusetts.{{cite web |url=https://research.mysticseaport.org/coll/coll001/ |title=Records of the T. A. Scott co. |date=20 May 2016 |publisher=mysticseaport.org |access-date=28 April 2021}}

}}

{{shipwreck list item

|ship={{HMS|Plumpton}}

|flag={{navy|UK}}

|desc=World War I: The {{sclass2|Racecourse|minesweeper|1}} struck a mine and was damaged in the North Sea off Ostend, West Flanders, Belgium. She was beached but was declared a total loss.{{cite web |url=http://www.clydesite.co.uk/clydebuilt/viewship.asp?id=12414 |archive-url=https://web.archive.org/web/20120321113609/http://www.clydesite.co.uk/clydebuilt/viewship.asp?id=12414 |url-status=usurped |archive-date=21 March 2012 |title=HMS Plumpton |publisher=Clydesite |access-date=18 February 2013}}

}}

{{shipwreck list item

|ship={{USS|Simplicity|SP-96|6}}

|flag={{navy|United States|1912}}

|desc=The motor boat was crushed by Barge No. 78 ({{flag|United States|1912}}) while tied up alongside an Army dock at Fort Wadsworth, New York.{{cite web |url=http://www.usmm.org/ww1navy.html |title=U. S. Navy Ships Sunk or Damaged from Various Causes during World War I |publisher=usmm.org |access-date=24 April 2021}}{{cite web |url=http://www.navsource.org/archives/12/170096.htm |title=Simplicity (SP 96) |publisher=Navsource |access-date=24 April 2021}}

}}

{{shipwreck list item

|ship={{SMU|UB-123}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UB III submarine struck a mine and sank in the North Sea with the loss of all 36 crew.{{cite web |url=http://uboat.net/wwi/boats/index.html?boat=UB+123 |title=UB 123 |publisher=Uboat.net |access-date=16 November 2012}}

}}

20 October

{{shipwreck list item

|ship={{ship||Emily Millington|schooner|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The schooner was shelled and sunk in the Atlantic Ocean {{convert|13|nmi|km}} north north east of the Bishop Rock, Isles of Scilly by {{SMU|UB-92||6}} ({{navy|German Empire}}). Her crew survived.{{cite web |url=http://uboat.net/wwi/ships_hit/1945.html |title=Emily Millington |publisher=Uboat.net |access-date=13 November 2012}}

}}

{{shipwreck list item

|ship={{HMS|M21}}

|flag={{navy|UK}}

|desc=World War I: The {{sclass|M15|monitor|1}} struck a mine in the North Sea off Ostend, West Flanders, Belgium. She was taken in tow but sank in the English Channel off Dover, Kent.

}}

{{shipwreck list item

|ship={{SS|Yenrut||2}}

|flag={{flag|United States|1897}}

|desc= The freighter foundered in a severe storm in the Atlantic Ocean east of Watlings Island ({{coord|25|00|N|72|15|W}}). Five crewmen were killed.{{cite web |url=https://babel.hathitrust.org/cgi/pt?id=mdp.39015073345368&view=1up&seq=20 |title=Annual report of the Supervising Inspector-general Steamboat-inspection Service, Year ending June 30, 1919 |publisher=Government Printing Office, Washington |via=Haithi Trust |access-date=14 August 2019}}

}}

21 October

{{shipwreck list item

|ship={{USS|Cero|SP-1189|6}}

|flag={{navy|USA|1912}}

|desc=The patrol vessel was destroyed by fire in Narragansett Bay {{convert|50|ft}} west of Bishop's Rock and about {{convert|500|yd}} west of Coasters Harbor Island. Her crew were rescued.{{cite web |url=http://www.usmm.org/ww1navy.html |title=U. S. Navy Ships Sunk or Damaged from Various Causes during World War I |publisher=usmm.org |access-date=23 April 2021}}

}}

{{shipwreck list item

|ship={{USS|Lake Borgne}}

|flag={{navy|USA|1912}}

|desc=The cargo ship struck a rock and sank near Mathieu Point, France.{{cite web |url=http://www.usmm.org/ww1navy.html |title=U. S. Navy Ships Sunk or Damaged from Various Causes during World War I |publisher=usmm.org |access-date=21 April 2021}}

}}

{{shipwreck list item

|ship=HMML 561

|flag={{navy|UK}}

|desc=The motor launch was lost on this date.

}}

{{shipwreck list item

|ship=Moscow

|flag={{flagcountry|UKGBI|civil}}

|desc=Russian Revolution: The cargo ship was scuttled at Petrograd to prevent her capture by Bolshevik forces.

}}

{{shipwreck list item

|ship={{SS|Saint Barchan|1917|2}}

|flag={{flagcountry|UKGBI|civil}}

|desc=World War I: The coaster was torpedoed and sunk in the Irish Sea {{convert|4|nmi|km}} off St John's Point, County Down by {{SMU|UB-94}} ({{navy|German Empire}}) with the loss of eight of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/5712.html |title=Saint Barchan |publisher=Uboat.net |access-date=13 November 2012}}

}}

{{shipwreck list item

|ship={{SMU|UB-89}}

|flag={{navy|German Empire}}

|desc=The Type UB III submarine collided with {{SMS|Frankfurt}} ({{navy|German Empire}}) at Kiel, Schleswig-Holstein ({{coord|54|21|N|10|10|E}}) and sank with the loss of seven lives. She was raised on 30 October.{{cite web |url=http://uboat.net/wwi/boats/index.html?boat=UB+89 |title=UB 89 |publisher=Uboat.net |access-date=13 November 2012}}

}}

23 October

{{shipwreck list item

|ship=Aghios Gerasimos

|flag={{flagicon|Greece}} Greece

|desc=World War I: The sailing vessel was sunk in the Mediterranean Sea south of Crete ({{coord|34|00|N|25|31|E}}) by {{SMU|UC-74}} ({{navy|German Empire}}).{{cite web |url=http://uboat.net/wwi/ships_hit/95.html |title=Aghios Gerasimos |publisher=Uboat.net |access-date=29 December 2012}}

}}

{{shipwreck list item

|ship={{HMS|D1}}

|flag={{navy|United Kingdom}}

|desc=The decommissioned D-class submarine was sunk as a target.

}}

{{shipwreck list item

|ship={{SV|J. H. Rutter||2}}

|flag={{flag|United States|1912}}

|desc=The sail barge was sunk in a collision with {{USS|Texan}} ({{navy|United States|1912}}) in the North River.{{cite web |url=http://www.usmm.org/ww1merchant.html |title=U.S. Merchant Ships, Sailing Vessels, and Fishing Craft Lost from all Causes during World War I |publisher=usmm.org |access-date=24 September 2020}}{{cite web |url=http://www.boatnerd.com/swayze/shipwreck/r.htm |title=Great Lakes Shipwrecks R |publisher=Boat Nerd |access-date=24 September 2020}}

}}

25 October

{{shipwreck list item

|ship={{SS|Princess Sophia||2}}

|flag={{flag|Canada|1868}}

|desc=File:Princess Sophia on Vanderbilt Reef 10-24-1918, looking NE.JPG

After grounding on Vanderbilt Reef in Lynn Canal near Juneau, Territory of Alaska, in a heavy snowstorm on 24 October, the passenger ship sank with loss of all 343 people on board.{{cite web |url=https://www.wrecksite.eu/wreck.aspx?25186 |title=Princess Sphia (+1918) |publisher=Wrecksite |access-date=24 August 2020}}

}}

26 October

{{shipwreck list item

|ship=Scow No. 2

|flag={{flag|United States|1912}}

|desc= The scow sank in Chelsea Creek at Charlestown, Massachusetts.{{cite web |url=https://research.mysticseaport.org/coll/coll001/ |title=Records of the T. A. Scott co. |date=20 May 2016 |publisher=mysticseaport.org |access-date=26 April 2021}}

}}

27 October

{{shipwreck list item

|ship={{HMT|Calceolaria}}

|flag={{navy|UK}}

|desc=World War I: The naval trawler struck a mine and sank in the North Sea off the Elbow Lightship ({{flagcountry|UKGBI|government}}) ({{coord|51|26|N|1|36|E}}) with the loss of five of her crew.{{cite web |url=http://uboat.net/wwi/ships_hit/1043.html |title=HMD Calceolaria |publisher=Uboat.net |access-date=28 October 2012}}

}}

{{shipwreck list item

|ship={{SS|Chaparra|1906|2}}

|flag={{flag|Cuba}}

|desc=World War I: Carrying a cargo of 2,000 tons of sugar, the 1,510-gross register ton cargo ship struck a mine laid by the submarine {{SMU|U-117}} ({{navy|German Empire}}) in {{convert|80|ft|m|0}} of water in the Atlantic Ocean of the coast of New Jersey, United States, {{convert|70|nmi}} southeast of the Barnegat Lighthouse and {{convert|10|nmi}} off Barnegat. She sank in five minutes with the loss of six of her crew. Her 23 survivors reached Barnegat in her boats.{{cite web |url=http://uboat.net/wwi/ships_hit/1214.html |title=Chaparra |publisher=Uboat.net |access-date=26 October 2012}}[https://njscuba.net/sites/chart_nj-3_barnegat.php#Chaparra njscuba.net Chaparra]

}}

{{shipwreck list item

|ship={{HMS|George R. Gray}}

|flag={{navy|UK}}

|desc=The tug was lost on this date.

}}

{{shipwreck list item

|ship={{ship||Maria Emilia|barque|2}}

|flag={{flag|Portugal}}

|desc=The barque sprang a leak in the Atlantic Ocean ({{coord|30|20|N|66|12|W}}) and was abandoned by her crew. They were rescued by {{SS|Themistocles|1907|2}} ({{flagicon|Greece}} Greece).{{Cite newspaper The Times |title=Shipping casualty reports |date=4 December 1918 |page=15 |issue=41964 |column=E}}

}}

{{shipwreck list item

|ship={{HMT|Neptunian}}

|flag={{navy|UK}}

|desc=The naval trawler collided with another vessel and sank in the Atlantic Ocean off Rathlin Island, County Donegal.{{cite web |url=http://www.hullwebs.co.uk/content/l-20c/conflict/ww1/trawlers/1918.htm |title=Hull Trawler Losses 1918 |publisher=Hullwebs |access-date=15 February 2013}}

}}

{{shipwreck list item

|ship={{SMU|U-78}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UE I submarine was torpedoed and sunk in the Skagerrak ({{coord|56|02|N|5|08|E}}) by {{HMS|G2}} ({{navy|UK}}) with the loss of all 40 crew.}}

28 October

{{shipwreck list item

|ship={{SS|Maj||2}}

|flag={{flag|Sweden}}

|desc=The cargo ship ran aground at Haar-om-Jaederen. She was declared a total loss on 2 November.

}}

{{shipwreck list item

|ship={{USS|Tarantula|SP-124|6}}

|flag={{Navy|USA|1912}}

|desc=The naval yacht/patrol boat collided with the steamer {{SS|Frisia||2}} ({{flag|Netherlands}}) in the Atlantic Ocean {{convert|8|nmi}} off the Fire Island Lightship (22px United States Coast Guard) and sank in {{convert|115|ft|m|0}} of water.[https://njscuba.net/sites/site_tarantula.php njscuba.net USS Tarantula]{{cite web |url=http://www.usmm.org/ww1navy.html |title=U. S. Navy Ships Sunk or Damaged from Various Causes during World War I |publisher=usmm.org |access-date=24 April 2021}}

}}

{{shipwreck list item

|ship={{SMU|U-47|Germany|6}}

|flag={{navy|German Empire}}

|desc=World War I: The Type U 43 submarine was scuttled at Pula, Austria-Hungary ({{coord|44|52|N|13|50|E}}).

}}

{{shipwreck list item

|ship={{SMU|U-65|Germany|6}}

|flag={{navy|German Empire}}

|desc=World War I: The Type U 63 submarine was scuttled at Pula ({{coord|44|52|N|13|50|E}}).

}}

{{shipwreck list item

|ship={{SMU|UB-48}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UB II submarine was scuttled at Pula ({{coord|44|52|N|13|50|E}}).

}}

{{shipwreck list item

|ship={{SMU|UB-116}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UB III submarine struck a mine and was then depth charged and sunk off Scapa Flow, the Orkney Islands, United Kingdom with the loss of all 36 crew. Wreck blown up 1975.{{cite web |url=http://uboat.net/wwi/boats/index.html?boat=UB+116 |title=UB 116 |publisher=Uboat.net |access-date=16 November 2012}}{{cite web |url=https://www.northlinkferries.co.uk/orkney-blog/wrecks-of-scapa-flow/ |archive-url=https://web.archive.org/web/20200716181325/https://www.northlinkferries.co.uk/orkney-blog/wrecks-of-scapa-flow/ |url-status=dead |archive-date=July 16, 2020 |title=wrecks of Scapa Flow |publisher=North Link Ferries |access-date=29 March 2021}}

}}

{{shipwreck list item

|ship={{SMU|UC-25}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UC II submarine was scuttled at Pula ({{coord|44|52|N|13|50|E}}).

}}

{{shipwreck list item

|ship={{SMU|UC-53}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UC II submarine was scuttled at Pula ({{coord|44|52|N|13|50|E}}).

}}

{{shipwreck list item

|ship={{SMU|UC-54}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UC II submarine was scuttled at Trieste, Italy ({{coord|45|39|N|13|45|E}}).

}}

29 October

{{shipwreck list item

|ship={{SMS|A51}}

|flag={{navy|German Empire}}

|desc=World War I: The {{sclass|A26|torpedo boat}} was scuttled at Rijeka, Kingdom of Serbs, Croats, and Slovenes.

}}

{{shipwreck list item

|ship={{SMS|A82}}

|flag={{navy|German Empire}}

|desc=World War I: The {{sclass|A56|torpedo boat}} was scuttled at Rijeka.

}}

{{shipwreck list item

|ship={{HMT|Falkirk}}

|flag={{navy|UK}}

|desc=The naval trawler was lost on this date.

}}

{{shipwreck list item

|ship={{HMT|Thomas Cornwall}}

|flag={{navy|UK}}

|desc=The {{sclass|Mersey|trawler|1}} collided with another vessel and sank in the North Sea off Filey, Yorkshire with the loss of twenty of her crew.{{cite web |url=http://www.wrecksite.eu/wreck.aspx?65677 |title=HMT Thomas Cornwall [+1918] |publisher=Wrecksite |access-date=20 February 2013}}

}}

{{shipwreck list item

|ship={{HMS|Ulysses|1917|6}}

|flag={{navy|UK}}

|desc=The {{sclass2|R|destroyer|||1916}} collided with {{SS|Ellerie||2}} ({{flagcountry|UKGBI|civil}}) and sank in the Firth of Clyde.}}

30 October

{{shipwreck list item

|ship={{HMCS|Galiano}}

|flag={{naval|Canada|1911}}

|desc=World War I: The Canadian patrol vessel was lost in a storm in Barkley Sound, British Columbia.{{cite book |last1=Macpherson |first1=Ken |last2=Barrie |first2=Ron |date=2002 |title=The Ships of Canada's Naval Forces 1910–2002 |edition=Third |publisher=Vanwell Publishing |location=St. Catharines, Ontario |isbn=1-55125-072-1 |pages=20}}

}}

{{shipwreck list item

|ship=Neptune

|flag={{flag|United States|1912}}

|desc=While under tow from Seattle, Washington, to Tyee, Territory of Alaska, with a cargo of {{convert|27,500|lb}} of salted herring, salt, and barrels, the 365-ton barge drifted onto rocks, was stranded, and then sank {{convert|4|nmi}} north of Gambier Island ({{coord|57|26|30|N|133|51|00|W|name=Gambier Island}}) in Southeast Alaska after her towline parted in a gale. Her crew of nine survived.[https://alaskashipwreck.com/shipwrecks-a-z/alaska-shipwrecks-n/ alaskashipwreck.com Alaska Shipwrecks (N)]

}}

{{shipwreck list item

|ship={{SMU|U-73}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UE I submarine was scuttled at Kotor, State of Slovenes, Croats and Serbs ({{coord|44|52|N|13|50|E}}).

}}

{{shipwreck list item

|ship={{SMU|UC-34}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UC II submarine was scuttled at Pula, Austria-Hungary ({{coord|44|52|N|13|50|E}}).{{cite web |url=http://uboat.net/wwi/boats/index.html?boat=UC+34 |title=UC 34 |publisher=Uboat.net |access-date=5 December 2012}}}}

31 October

{{shipwreck list item

|ship={{SV|A. J. Fuller||2}}

|flag={{flag|United States|1912}}

|desc=The full-rigged sailing ship was rammed and sunk at anchor in Elliott Bay in {{convert|41|fathom|lk=in}} of water by {{SS|Mexico Maru||2}} ({{flagcountry|Empire of Japan}}). Both crewmen on board survived.{{Cite newspaper The Times |title=Casualty reports |date=5 November 1918 |page=12 |issue=41939 |column=A}}{{cite web |url=https://www.wrecksite.eu/wreck.aspx?209363 |title=A. J. Fuller (+1918) |publisher=Wrecksite |access-date=26 August 2020}}

}}

{{shipwreck list item

|ship=Fredelia IV

|flag={{flag|United States|1912}}

|desc=While towing the barge Neptune ({{flag|United States|1912}}) during a gale, the 21-gross register ton seiner was wrecked in Seymour Canal on the coast of Admiralty Island in the Alexander Archipelago in Southeast Alaska {{convert|1|nmi}} south of Pleasant Bay ({{coord|57|38|40|N|133|59|15|W|name=Pleasant Bay}}) after the towline broke and she collided with Neptune. Fredelia IV was a total loss, but the two men on board survived and were rescued by the motorboat Baltic ({{flag|United States|1912}}).[https://alaskashipwreck.com/shipwrecks-a-z/alaska-shipwrecks-f/ alaskashipwreck.com Alaska Shipwrecks (F)]

}}

{{shipwreck list item

|ship={{SMU|UB-129||6}}

|flag={{navy|German Empire}}

|desc=World War I: The Type UB III submarine was scuttled at Rijeka, State of Slovenes, Croats and Serbs ({{coord|45|19|N|14|26|E}}).{{cite web |url=http://uboat.net/wwi/boats/index.html?boat=UB+129 |title=UB 129 |publisher=Uboat.net |access-date=16 November 2012}}}}

Unknown date

{{shipwreck list item

|ship={{SMS|Brugge}}

|flag={{navy|German Empire}}

|desc=File:SS Brussels Zeebrugge Raid.jpg.]]

World War I: The depôt ship was scuttled at Zeebrugge, West Flanders, Belgium.

}}

{{shipwreck list item

|ship={{HMS|G7}}

|flag={{navy|UK}}

|desc=World War I: The G-class submarine was lost in the North Sea on or after 23 October. She was declared lost on 1 November.

}}

{{shipwreck list item

|ship={{ship|German trawler|Prinz Heinrich||2}}

|flag={{navy|German Empire}}

|desc=World War I: The incomplete Neuwerk-class Vorpostenboot was scuttled sometime in October.

}}

References

{{cite book |last=Friedman |first=Norman |title=U.S. Small Combatants: Including PT-Boats, Subchasers and the Brown Water Navy: An Illustrated Design History |year=1987 |publisher=Navy Institute Press |location=Annapolis, Maryland, USA |isbn=0-87021-713-5}}

1918-10