Submarine volcanoes

underwater vents or fissures in the Earth's surface from which magma can erupt

volcano in Tonga

underwater volcano

submerged volcanic island south of Sicily

undersea mountain in Hawaii, United States

Jólnir () was formerly a volcanic island south of Iceland. It was a former vent of Surtsey, along with Syrtlingur and Surtla. It emerged from the ocean as a result of active plate tectonics between December 1965 and July 1966. Oceanic erosion cyclically wore down the new lava as it formed, and the island sank below the surface several times.

island in the United States of America

Kavachi is one of the most active submarine volcanoes in the south-west Pacific Ocean. Located south of Vangunu Island in the Solomon Islands, it is named after a sea god of the New Georgia Group islanders and is also referred to locally as Rejo te Kavachi ("Kavachi's oven"). The volcano has become emergent and then been eroded back into the sea at least eight times since its first recorded eruption in 1939.

active submarine volcano on the Caribbean Sea floor

volcanic island

mountain

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.

Fonuafo‘ou ("New land" in Tongan), formerly known as Falcon Island, is a submarine volcano in the western part of the Ha'apai group in Tonga. The volcano has created an island several times throughout history.

bay

island in Tonga

submarine volcano above the Pitcairn hotspot in the central Pacific Ocean

Vailuluu is a volcanic seamount discovered in 1975. It rises from the sea floor to a depth of and is located between Tau and Rose islands at the eastern end of the Samoa hotspot chain. The basaltic seamount is considered to mark the current location of the Samoa hotspot. The summit of Vailuluu contains a 2 km wide, 400 m deep oval-shaped caldera. Two principal rift zones extend east and west from the summit, parallel to the trend of the Samoan hotspot. A third less prominent rift extends southeast of the summit.

seamount located off New Zealand

mountain in Vietnam

mountain in Tonga

mountain in United States of America

mountain

seamount in New Zealand

seamount in Canada

submarine volcano within the Volcano Islands, Japan

submerged circular reef of volcanic origin in the Northern Mariana Islands

mountain

large caldera on the Benham rise east of the Philippines

submarine volcano, the most westerly in the Easter Seamount Chain

Eifuku () and NW Eifuku () are two seamounts in the Pacific Ocean. The better known one is NW Eifuku, where an unusual hydrothermal vent called "Champagne" produced droplets of liquid . Both seamounts are located in the Northern Marianas and are volcanoes, part of the Izu-Bonin-Mariana Arc. NW Eifuku rises to depth below sea level and is a wide volcanic cone.

active submarine volcano within the Volcano Islands, Japan

active submarine volcano in the Mariana Islands

volcano

field of submarine volcanoes

submarine volcano

Wikimedia list article

submarine volcano