How Big Is The Magma Chamber Under Yellowstone

How Big Is The Magma Chamber Under Yellowstone?

about 40 by 80 kilometers across

Where is the largest magma chamber on Earth?

1 – La Garita Caldera

Garita Caldera is a large supervolcanic caldera in the San Juan volcanic field in the San Juan Mountains near the town of Creede in southwestern Colorado United States. The eruption that created the La Garita Caldera is among the largest known volcanic eruptions in Earth’s history.

How big is the hotspot under Yellowstone?

The youngest of the hotspot calderas the Yellowstone Caldera formed 640 000 years ago and is about 34 miles (55 km) by 45 miles (72 km) wide. Non-explosive eruptions of lava and less-violent explosive eruptions have occurred in and near the Yellowstone Caldera since the last super eruption.

How far down does the magma plume reach under Yellowstone?

The 45-mile-wide plume that rises through Earth’s upper mantle from at least 410 miles beneath the surface. The plume angles upward to the east-southeast until it reaches the colder rock of the North American crustal plate and flattens out like a 300-mile-wide pancake about 50 miles beneath Yellowstone.

How far would the lava go if Yellowstone erupted?

The eruption could be expected to kill as many as 90 000 people immediately and spread a 10-foot (3-meter) layer of molten ash as far as 1 000 miles (1 609 kilometers) from the park.

Is Long Valley Caldera bigger than Yellowstone?

A GIANT supervolcano hidden beneath California could be an equal if not greater threat to the US than Yellowstone volcano scientists have revealed. The 20-mile long Long Valley Caldera in eastern California is one of the world’s largest volcanic calderas.

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Is there a super volcano under Yellowstone?

The Yellowstone Caldera sometimes referred to as the Yellowstone Supervolcano is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States. The caldera and most of the park are located in the northwest corner of Wyoming.

Is Yellowstone hotspot moving?

Actually the source of the hotspot is more or less stationary at depth within the Earth and the North America plate moves southwest across it. The average rate of movement of the plate in the Yellowstone area for the last 16.5 million years has been about 4.6 centimeters (1.8 inches) per year.

Where is the Yellowstone hotspot moving?

The hotspot is stationary relative to the moving tectonic plates that make up Earth’s surface. As the North American plate moves to the southwest over the hotspot the center of volcanic activity therefore appears to be migrating to the northeast.

What happens if Yosemite erupts?

If the supervolcano underneath Yellowstone National Park ever had another massive eruption it could spew ash for thousands of miles across the United States damaging buildings smothering crops and shutting down power plants. … In fact it’s even possible that Yellowstone might never have an eruption that large again.

How deep is magma at Yellowstone?

How large is the magma chamber that is currently under Yellowstone? The magma chamber is believed to be about 40 by 80 kilometers across similar in size to the overlying Yellowstone caldera. The top of the chamber is about 8 km deep and the bottom is around 16 km deep.

How many miles down is magma?

This liquid layer around the core meets Earth’s lower mantle about 1 800 miles (2 900 kilometers) below the surface.

How deep is a magma chamber?

between six and 10 kilometers

Computer models show why eruptive magma chambers tend to reside between six and 10 kilometers underground. A new study reveals why the magma chambers that feed recurrent and often explosive volcanic eruptions tend to reside in a very narrow depth range within the Earth’s crust.

What volcano could destroy the world?

Yellowstone supervolcano

The Yellowstone supervolcano is a natural disaster that we cannot prepare for it would bring the world to its knees and destroy life as we know it. This Yellowstone Volcano has been dated to be as old as 2 100 000 years old and throughout that lifetime has erupted on average every 600 000-700 000 years.

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What states would be safe if Yellowstone erupts?

Yellowstone volcano eruption simulations show an unexpected blast would produce ash fallout from the Northwest US down to the southern tip of Florida. Volcanic ash fallout of more than 39.4 inches (one metre) would blanket Yellowstone’s immediate vicinity in the states of Wyoming Montana and Utah.

What happens if Mt St Helen erupts?

If Mount St. Helens reawakened violently an ash plume reaching 30 000 feet (about 9 100 meters) or more could materialize in as little as five minutes grounding aircraft and wreaking havoc on agriculture water and power supplies and human health Ewert said.

What is the biggest supervolcano on Earth?

The largest (super) eruption at Yellowstone (2.1 million years ago) had a volume of 2 450 cubic kilometers. Like many other caldera-forming volcanoes most of Yellowstone’s many eruptions have been smaller than VEI 8 supereruptions so it is confusing to categorize Yellowstone as a “supervolcano.”

How many Supervolcanoes are in the US?


Three of the seven supervolcanoes are located in the continental US: Yellowstone the Long Valley Caldera and the Valles Caldera.

How many Supervolcanoes are in the world?

There are about 12 supervolcanoes on Earth — each one at least seven times larger than Mount Tambora which had the biggest eruption in recorded history. If all of these supervolcanoes erupted at once they’d likely pour thousands of tons of volcanic ash and toxic gases into the atmosphere.

What would happen if Taupo erupted?

“If Taupo were to erupt we would expect to see major ground deformation and thousands of earthquakes not hundreds ” Jolly says. White Island’s 2000 eruption followed a long period of activity and is one of “a couple” of eruptions Jolly has seen. Even that eruption though was “effectively a burp” she says.

How loud would Yellowstone be?

It was loud enough to deafen people within 100 km and was detectable on barometric pressure sensors around the globe. In fact the shockwave circled the globe 7 times before it faded to below detection.

How large is the Yellowstone volcanic caldera?

80 kilometers long
The huge crater known as a caldera measured as much as 80 kilometers long 65 kilometers wide and hundreds of meters deep extending from outside of Yellowstone National Park into the central area of the Park (see map in question above for location information).

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What is the hot spot?

Mobile WiFi hotspots

Did you know that you can use your iPhone or many Android smartphones as a WiFi hotspot? By turning on this feature your phone uses its cellular data to create a WiFi hotspot. You can then connect a computer or other device to this hotspot to access the internet.

How did the Yellowstone hot spot form?

The Yellowstone caldera was created by a massive volcanic eruption approximately 631 000 years ago. Later lava flows filled in much of the caldera now it is 30 x 45 miles. Its rim can best be seen from the Washburn Hot Springs overlook south of Dunraven Pass.

How often do Supervolcanoes erupt?

Geologists think these eruptions take place about every 50 000 years which suggests one is overdue. About 40 supervolcanoes are dotted across the globe.

Is the Hawaiian hotspot still active?

The Hawai’i hotspot is a volcanic hotspot located near the namesake Hawaiian Islands in the northern Pacific Ocean. Four of these volcanoes are active two are dormant more than 123 are extinct most now preserved as atolls or seamounts. …

How long until the Yellowstone volcano erupts?

In terms of large explosions Yellowstone has experienced three at 2.08 1.3 and 0.631 million years ago. This comes out to an average of about 725 000 years between eruptions. That being the case there is still about 100 000 years to go but this is based on the average of just two numbers which is meaningless.

What is found 250 miles below the surface of Yellowstone?

The researcher discovered an anomalous structure about 250 to 400 miles beneath the line of Yellowstone volcanoes. Professor Zhou said: “This evidence was in direct contradiction to the plume model.”

What would happen if Yellowstone was nuked?

In a nuclear attack the detonation would occur above ground so the majority of the energy would be released into the air. … So in conclusion nothing would happen and Yellowstone would not erupt if for some reason a nuclear bomb was detonated near the supervolcano.

How big would the ash cloud be if Yellowstone erupted?

For starters the eruption could emit ash that would expand over 500 miles. For comparison this map shows the area that the ash reached in the 1980 Mount St.

Why the Yellowstone Supervolcano Could Be Huge

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