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Volcanoes of Atlantic Ocean (23)

Ascensión | Bouvet | Gough Island | Inaccessible Island | Jan Mayen | Martin Vaz | Nightingale Island | Pico Fracture Zone | Romanche Fracture Zone | Thompson Island | Trindade | Tristan da Cunha | Unnamed 3.5°S/24.5°W | Unnamed 39.95°N/25.83°W | Unnamed 4.20°N/21.45°W | Unnamed 49.00°N/34.5°W | Unnamed 7.00°N/21.83°W | Walvis Ridge at 33°S
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Volcano list


(Stratovolcano 858 m / 2,815 ft)


(Shield volcano 780 m / 2,559 ft)

Gough Island

(Shield 910 m / 2986 ft)

Inaccessible Island

(Stratovolcano 563 m / 1847 ft)

Jan Mayen

(Stratovolcano 2277 m / 7,470 ft)

Martin Vaz

(Stratovolcano 175 m / 574 ft)

Nightingale Island

(Stratovolcano 365 m / 1,197 ft)

Pico Fracture Zone

(Submarine volcano -4200 m / -13,779 ft)

Romanche Fracture Zone

(Submarine volcano -1528? m / - 5,013 ft)

Thompson Island

(Submarine volcano? unknown summit elevation)
Thompson Island was a phantom island in the South Atlantic. According to the Global Volcanism Program, it was thought to be located about 70 km (43 mi; 38 nmi) north-northeast of Bouvet Island, a small Norwegian dependency located between South Africa and Antarctica. [more]


(Stratovolcano 600+ m / 1,968 ft)

Tristan da Cunha

(Shield volcano 2060 m / 6,758 ft)

Unnamed 3.5°S/24.5°W

(Submarine volcano -5300? m / -17,388 ft)

Unnamed 39.95°N/25.83°W

(Submarine volcano -2835 m / - 9,301 ft)
A ship captain reported water ebullition and hot fumes at this location in 1856. [more]

Unnamed 4.20°N/21.45°W

(Submarine volcano -2900? m / - 9,514 ft)

Unnamed 49.00°N/34.5°W

(Submarine volcano -1650 m / - 5,413 ft)

Unnamed 7.00°N/21.83°W

(Submarine volcano? -1415? m / - 4,642 ft)

Walvis Ridge at 33°S

(Submarine volcano -1200 m / -3,937 ft)
Volcano news
Mon, 9 Nov 2020, 09:54

Michael volcano (United Kingdom, South Sandwich Island): a thermal anomaly in the summit crater continues

A thermal anomaly in the summit crater at Michael volcano visible from satellite on 6 November (image: Sentinel 2)
A satellite image from 6 November shows that continuous elevated surface temperatures in the summit crater were identified. ... Read all
Wed, 4 Nov 2020, 06:00

Saunders volcano (South Sandwich Islands, UK) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 November-10 November 2020 (New Activity / Unrest)

Gas emissions from Michael volcano on Saunders Island were possibly visible in satellite images drifting NE on 24 October. A clear view of the crater on 6 November revealed a thermal anomaly on the crater floor. Weather clouds often obscure views of Michael. ... Read all
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