Get our newsletter!
Check out our volcano tours on VolcanoAdventures.com!
Volcanoes & Earthquakes - new app for Android
Guaranteed tours:
22-27 Jul 2018: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
22 Jul - 5 Aug 2018: Volcanoes and Cultures - Adventures in the South Sea - Vanuatu (South Sea)
26 Jul - 5 Aug 2018: The Volcanoes of Ambrym - the Grand Traverse - Vanuatu (South Sea)
30 Jul - 13 Aug 2018: Colors of Iceland: Fire, Earth, Ice and Water - Iceland
10-15 Aug 2018: Krakatau Volcano Special - Krakatau volcano, Sunda Strait
15-31 Aug 2018: Volcanoes and Spices - N-Sulawesi + Halmahera (Indonesia)
2-20 Sep 2018: Kamchatka - Mountains of Fire & Ice - Kamchatka peninsula (Russia)
14-29 Sep 2018: From Krakatau to Bali - Java (Indonesia)
26 Sep - 1 Oct 2018: Adventure Volcano - Yasur Volcano Travel - Tanna Island (Vanuatu)
26 Sep - 10 Oct 2018: Volcanoes and Cultures - Adventures in the South Sea - Vanuatu (South Sea)
: spaces available / : guaranteed / : few spaces left / : booked out
Random pictures

Don Joao de Castro Bank volcano

Submarine volcano -13 m / - 43 ft
Azores, Portugal, 38.23°N / -26.63°W
Current status: dormant (1 out of 5) | Reports
Don Joao de Castro Bank volcano books
Typical eruption style: unspecified
Don Joao de Castro Bank volcano eruptions: 1720 
TimeMag. / DepthDistanceLocation
Tue, 17 Jul
Tue, 17 Jul 05:34 UTCM 2.928 kmFossa Hirondelle
Tue, 17 Jul 04:59 UTCM 3.338 kmFossa Hirondelle
Tue, 10 Jul
Tue, 10 Jul 06:42 UTCM 2.330 kmSE Terceira
Tue, 10 Jul 03:08 UTCM 2.426 kmSE Terceira
Tue, 3 Jul
Tue, 3 Jul 05:26 UTCM 2.322 kmFossa Hirondelle
View all recent quakes

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.
---
Smithsonian / GVP volcano information


Latest satellite images

 

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.