Banco D. João de Castro
marinhas 1
38º 13'12''N 26º 36'48''W
“D. João de Castro” bank is a seamount that rises about 1,600 m from the surrounding seafloor. Its summit is 12 m below sea level and corresponds to a 450 m diameter crater, where an impressive low-depth hydrothermal system extends. This active volcano erupted in 1720 building an ephemeral island.
