SM UB-4 1915
Marker: recorded wreck position (First World War).
Key facts
| Name | SM UB-4 | Wikidata label |
|---|---|---|
| Year lost | 1915 | Wikidata P793 significant event, point-in-time qualifier |
| Era | First World War | derived from year |
| Ship type | U-boat | Wikidata P31 instance of |
| Cause of loss | War action | Wikidata P828 has cause (on P793 event): bombardment |
| Nationality / flag | German Reich | Wikidata P8047 country of registry |
| Operator | Imperial German Navy | Wikidata P137 operator |
| Sea / ocean | North Sea | Natural Earth marine areas (public domain), point-in-polygon |
| Nearest coast | England | Natural Earth (public domain); approx. 41 km from land |
| Position | 52.7167, 2.3000 | Wikidata P625 coordinate location (CC0) |
About the wreck
Seiner Majestät UB-4 was a German Type UB I submarine (U-boat) in the German Imperial Navy (German: Kaiserliche Marine) during World War I. She was sunk by a British Q-ship disguised as a fishing smack in August 1915.
UB-4 was ordered in October 1914 and was laid down at the Germaniawerft shipyard in Kiel in November. UB-4 was a little more than 28 metres (92 ft) in length and displaced between 127 and 142 tonnes (125 and 140 long tons), depending on whether surfaced or submerged. She carried two torpedoes for her two bow torpedo tubes and was also armed with a deck-mounted machine gun. UB-4 was broken into sections and shipped by rail to Antwerp for reassembly. She was launched and commissioned as SM UB-4 in March 1915.
UB-4 conducted the first sortie of the Flanders Flotilla in April, during which she sank the Belgian Relief ship Harpalyce, the first ship credited to the flotilla. She sank three more ships from mid-April to mid-August. On 15 August, UB-4 surfaced near the British Q-ship Inverlyon and was sunk by gunfire from the sailing vessel. None of UB-4's 14 crewmen survived the attack.
Location
- Recorded position: 52.7167, 2.3000 (Wikidata P625 coordinate location (CC0); may be approximate)
- Sea / ocean: North Sea
- Nearest coast: England
Wreck positions on this site are for interest only and are not for navigation. Many wrecks are war graves or legally protected: never disturb human remains or remove artefacts, and check local law before diving.
Text adapted from the Wikipedia article SM UB-4 (revision 1373690423), licensed under CC BY-SA 4.0. Changes: excerpted from the article lead section; condensed by selecting paragraphs; citations and formatting removed. No text added. This excerpt is available under the same licence.
Wreck facts from Wikidata (CC0).
Nearby wrecks
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Browse more: UK & Ireland wrecks · wrecks off England · North Sea · First World War