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Don Joao de Castro Bank vulkaan

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 vulkaan boeken
Typical eruption style: niet gespecifieerd
Don Joao de Castro Bank vulkaanuitbarstingen: 1720 
TijdMag. / DiepteAfstandLocatie
Wed, 17 Apr 2019
Wed, 17 Apr 19:06 UTCM 2.031 kmSE Terceira (Portugal)
Wed, 3 Apr 2019
Wed, 3 Apr 06:06 UTCM 3.0 / 5 km24 kmAzores Islands, Portugal
Thu, 28 Mar 2019
Thu, 28 Mar 22:51 UTCM 2.239 kmFossa Hirondelle (Portugal)
Sun, 24 Mar 2019
Sun, 24 Mar 07:10 UTCM 2.534 kmSE Terceira (Portugal)
Sat, 16 Mar 2019
Sat, 16 Mar 05:33 UTCM 2.128 kmFossa Hirondelle (Portugal)
Bekijk alle recente aardbevingen

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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