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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.)

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10y ago
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11y ago

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.

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9y ago

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.

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13y ago

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

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11y ago

about 4000 times larger than someones bowels

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11y ago

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

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Q: How big can underwater volcanoes get?
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Related questions

Can volcanoes occur underwater?

Yes and a great many of the earth's volcanoes are underwater.


What are Underwater volcanoes called?

Underwater volcanoes are called submarine volcanoes. They form in a similar way as their continental counterparts, that is close to plate boundaries.


How are underwater volcanoes different from volcanoes that are above sea level?

jks


How do underwater volcanoes start?

with a bang


Why are island made?

underwater volcanoes


Is forming underwater mountains and volcanoes convergent divergent or transform?

Underwater volcanoes and mountains can form at both convergent and divergent boundaries.


How do underwater volcanoes affect marine life?

Underwater volcanoes introduce substances into the water that bacteria can feed on. These bacteria are the source of nutrition for miniature ecosystems that emerge around such volcanoes.


What magma forms underwater mountains?

Volcanoes


Do people name underwater volcanoes?

Yes.


How do they Hawiians Island form?

Underwater volcanoes


How where the hawain islands formed?

underwater volcanoes


What causes underwater volcanoes?

the earths core ozes out magma and then throw the underwater volcano