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Fotos al azar

Don Joao de Castro Bank volcano

Submarine volcano -13 m / - 43 ft
Azores, Portugal, 38.23°N / -26.63°W
Current status: normal or dormant (1 out of 5) | Reports
Don Joao de Castro Bank volcano books
Typical eruption style: sin especificar
Erupciones del volcán Don Joao de Castro Bank: 1720 
Fecha / HoraRevista / ProfundidadDistanciaUbicación
Sun, 9 Feb 2020
Sun, 9 Feb 00:14 UTCM 3.19 kmBanco D. Joao de Castro (Portugal)
Mon, 3 Feb 2020
Mon, 3 Feb 15:42 UTCM 2.214 kmBanco D. Joao de Castro (Portugal)
Mon, 3 Feb 15:21 UTCM 3.010 kmBanco D. Joao de Castro (Portugal)
Fri, 31 Jan 2020
Fri, 31 Jan 16:49 UTCM 2.324 kmSE Terceira (Portugal)
Wed, 29 Jan 2020
Wed, 29 Jan 13:09 UTCM 2.323 kmSE Terceira (Portugal)
Ver los sismos recientes

Background:

Don Joao de Castro Bank is a large submarine volcano that rises to within 13 m of the sea surface roughly halfway between Terceira and San Miguel Islands. Pillow lavas form the base of the volcano, which is capped by basaltic hyaloclastites. A submarine eruption during December 1720 produced an ephemeral island that attained a length of 1.5 km and an altitude of about 250 m before it was eroded beneath the sea surface two years later. The volcano (also spelled Dom Joao de Castro) was named after the Portuguese hydrographic survey vessel that surveyed the bank in 1941. Two youthful parasitic craters, one tephra covered and the other sediment free, are located on the NW flank. The submarine volcano has an impressive shallow fumarole field and remains seismically active.
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Smithsonian / GVP volcano information


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