Ridge volcanoes

island in the Arctic Ocean, part of Norway

Norwegian uninhabited subantarctic volcanic island

sub-Antarctic islands belonging to South Africa

Beerenberg is a stratovolcano dominating the northeastern end of the Norwegian island of Jan Mayen. It is high and is the world's northernmost subaerial active volcano and the only active volcano in Norway. The volcano is topped by a mostly ice-filled crater about wide, with numerous peaks along its rim including the highest summit, Haakon VII Toppen, on its western side.

submarine volcano on the Juan de Fuca Ridge west of Oregon

seamount in Canada