Former islands from the last glacial maximum

submerged volcanic island south of Sicily

is a submarine volcano located about 450 kilometers south of Tokyo on the Izu-Ogasawara Ridge in the Izu Islands. Volcanic activity has been detected there since 1869. Since then it has undergone more eruptions, the most powerful of which resulted in the appearance and disappearance of a small island.

Kolumbo () is an active submarine volcano in the Aegean Sea in Greece, about northeast of Cape Kolumbo, Santorini (Thira) island. The largest of a line of about twenty submarine volcanic cones extending to the northeast from Santorini, it is about in diameter with a crater across. It was first noticed by humans when it breached the sea surface in 1649–1650. The Smithsonian Institution's Global Volcanism Program treats it as part of the Santorini volcano, though at least one source maintains that it is a separate magmatic system.

active submarine volcano on the Caribbean Sea floor

mountain

volcanic island

is a submarine volcano that is part of the Volcano Islands in the Bonin Islands of Japan. It is located northeast of the island of South Iwo Jima.

large submarine volcano in the north Atlantic between São Miguel and Terceira in the Azores

submarine volcano above the Pitcairn hotspot in the central Pacific Ocean

bank of sand and coral in the Caribbean

seamount in Canada

geographical object

volcanic seamount to the north of New Zealand

mountain

submerged circular reef of volcanic origin in the Northern Mariana Islands

protected area in Portugal

field of submarine volcanoes

seamounts and former island in the North Sea