How big can underwater volcanoes get?

Answer 1

The tallest volcanoes on earth existed millions of years ago, and may have towered many kilometers above their base level.

Existing volcanoes have reached heights of over 4000 meters (13000 feet) above sea level. The tallest volcano, Mauna Kea, has its base on the ocean floor and is over 10000 meters (33000 feet) in total height.

(Olympus Mons, on Mars, is more than 22 km tall, or over 14 miles.)

Answer 2

The volcanoes that have the highest elevations are located in Africa with the inactive Mount Kilamanjaro estimated at 19,340 feet. Second is Mount Cameroon at 13,353 feet and it last erupted in 1982. See the related link for a chart showing the Earth's major volcanoes.

Answer 3

Underwater volcanoes can vary greatly in size, from small seamounts to massive underwater mountain ranges like the Mid-Atlantic Ridge. These volcanic structures can extend for hundreds of kilometers and reach heights of several kilometers above the seafloor. Some underwater volcanoes, known as seamounts, can rise thousands of meters from the ocean floor.

Answer 4

The largest volcano on Earth is under water near Japan and is over 100 thousand square miles in area. The name of the volcano is Tamu Massif.

Answer 5

They can get as big as 2500m in height. or as big as they want. :0

Answer 6

about 4000 times larger than someones bowels

Answer 7

up to 375 ft tall and 7 miles wide (by the way I'm only 11)