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Volcans dans l'océan Atlantique (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

Cabo Verde (5 volcans)

Brava | Fogo | Santo Antao | Sao Nicolau | Sao Vicente

[plus petit] [plus gros]

Volcano list

Ascensión

(Stratovolcano 858 m / 2,815 ft)

[plus d'info]

Bouvet

(Shield volcano 780 m / 2,559 ft)

[plus d'info]

Gough Island

(Shield 910 m / 2986 ft)

[plus d'info]

Inaccessible Island

(Stratovolcano 563 m / 1847 ft)

[plus d'info]

Jan Mayen

(Stratovolcano 2277 m / 7,470 ft)

[plus d'info]

Martin Vaz

(Stratovolcano 175 m / 574 ft)

[plus d'info]

Nightingale Island

(Stratovolcano 365 m / 1,197 ft)

[plus d'info]

Pico Fracture Zone

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

[plus d'info]

Romanche Fracture Zone

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

[plus d'info]

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. [plus d'info]

Trindade

(Stratovolcano 600+ m / 1,968 ft)

[plus d'info]

Tristan da Cunha

(Shield volcano 2060 m / 6,758 ft)

[plus d'info]

Unnamed 3.5°S/24.5°W

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

[plus d'info]

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. [plus d'info]

Unnamed 4.20°N/21.45°W

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

[plus d'info]

Unnamed 49.00°N/34.5°W

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

[plus d'info]

Unnamed 7.00°N/21.83°W

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

[plus d'info]

Walvis Ridge at 33°S

(Submarine volcano -1200 m / -3,937 ft)

[plus d'info]

Actualitées

mer., 29 nov. 2023, 15:00

Brava volcano (Cape Verde) - Smithsonian / USGS Weekly Volcanic Activity Report for 22 November-28 November 2023 (New Activity / Unrest)

According to the Cape Verde National Institute of Meteorology and Geophysics (INMG), seismicity at Brava increased on 30 October and remained elevated. A M 3.6 earthquake was recorded at 1819 on 30 October and was followed by eight more events of similar magnitudes that were felt by residents. A M 4.8 was recorded at 2100 and was followed by a 48-hour-long seismic swarm mostly consisting of low-magnitude events that were unable to be located. ... Read all

lun., 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

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