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Don João de Castro Bank Volcano - John Seach
Azores
38.23 N, 26.63 W
summit elevation -14 m
submarine volcano
The submarine volcano is located between Terceira and San Miguel Islands. 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.
Don João de Castro Bank Volcano Eruptions
1720