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Nobody is sure, it last erupted 700 000 years ago. Its eruption could produce enough ash to layer the atmosphere with 5 feet of ash, and will knockout everything and body within 1000 mile radius so when it erupts places such as Denver and Cheyenne are at risk.

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13y ago
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9y ago

The Yellowstone volcano is not a volcanic mountain such as in the typical image of a volcano. It is a caldera; a depression in the ground formed when the ground collapsed during the volcano's last cataclysmic eruption. The depression is about 40 miles across.

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8y ago

Any eruption at Yellowstone will be catastrophic, at least 7.0 or higher. It is predicted to destroy most of the North American continent and change weather worldwide. This is not conjecture; scientists know that there will be an eruption at Yellowstone and that it is already long overdue to occur.

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14y ago

The Yellowstone caldera is 34 miles by 45 miles

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13y ago

100 miles

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Q: How big is the Caldera volcano that sits under Yellowstone National Park?
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Related questions

What type of volcano is under most of Yellowstone National Park?

The Yellowstone Caldera, also known as the Yellowstone Supervolcano, is a volcanic caldera and supervolcano estimated to be an area of about 34 X 45 miles (55 X 72 km).


What is under Yellowstone Park?

A few miles under Yellowstone is an enormous magma chamber associated with a supervolcano.


Where in the world is the yellow stone volcano?

The volcano that is in Yellowstone National Park is located under the park. Yellowstone Caldera erupts daily spewing steam and hot water through Old Faithful, a geyser. Other points of interest in volcanic activity can be found at The Grand Prismatic Spring.


When did yellow stone volcano erupt?

Yellowstone Volcano. Some called it Yellowstone Caldera.


What is the problem with rock stream in Yellowstone?

Its because of the super volcano under Yellowstone park


What does Yellowstone Volcano look like?

The Yellowstone volcano is actually a supervolcano, and is hidden under the rest of the park. So whenever you go and visit any part of Yellowstone, you are actually walking on top of the volcano itself.


What is the supervolcano in Yellowstone?

The Yellowstone Caldera is the volcanic caldera in Yellowstone National Park in the United States. The caldera is located in the northwest corner of Wyoming, in which the vast majority of the park is contained. The major features of the caldera measure about 55 kilometers (34 mi) by 72 kilometers (45 mi) as determined by geological field work conducted by Bob Christiansen of the United States Geological Survey in the 1960s and 1970s. After a BBC television science program (Horizon) coined the term supervolcano in 2000, it has often been referred to as the Yellowstone Supervolcano.


What type of tectonic activity is responsible for the Yellowstone Caldera?

It's a supervolcano. It's not like a normal volcano because it happens because of a magma chamber underground. because of the volume of the chamber, the magnitude of the volcano is a lot bigger - VEI 8 on the Richter scale


What volcanoes are in Wyoming?

Yes. The Devils Tower is the core of a volcano that has become dormant, And the land around the core eroded away with time. And then there's the Super Volcano under Yellowstone National Park.


Does the Yellowstone National Park have volcanoes?

There is one supervolcano under Yellowstone.


How long does it take for an volcano to erutp?

It varies from volcano to volcano. The super volcano under Yellowstone National Park erupts an average of once every 600,000 years. Others may erupt once, then go extinct. Others may erupt once a century.


Is a caldera another name for a magma chamber?

No. A magma chamber is the area under a volcano where molten rock is stored. A caldera is a depression in the ground formed during an exceptionally violent volcanic eruption. A caldera forms when a volcano drains a large volume of magma from the magma chamber, causing the volcano to collapse into the space left behind.