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World's largest volcano in Yellowstone National Park to wipe out two-thirds of US?

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On the verge of a catastrophe? Yellowstone National Park's caldera has erupted three times in the last 2.1 million years and scientists monitoring it say we could be in for another eruption.

The super-volcano beneath Yellowstone National Park in Wyoming has been rising at a record rate since 2004.

It would explode with a force a thousand times more powerful than the Mount St Helens eruption in 1980.

Spewing lava far into the sky, a cloud of plant-killing ash would fan out and dump a layer 10ft deep up to 1,000 miles away.

Two-thirds of the U.S. could become uninhabitable as toxic air sweeps through it, grounding thousands of flights and forcing millions to leave their homes.

This is the nightmare that scientists are predicting could happen if the world’s largest super-volcano erupts for the first time in 600,000 years, as it could do in the near future.

Yellowstone National Park’s caldera has erupted three times in the last 2.1 million years and researchers monitoring it say we could be in for another eruption.

They said that the super-volcano underneath the Wyoming park has been rising at a record rate since 2004 – its floor has gone up three inches per year for the last three years alone, the fastest rate since records began in 1923.

But hampered by a lack of data they have stopped short of an all-out warning and they are unable to put a date on when the next disaster might take place.

When the eruption finally happens it will dwarf the effect of Iceland’s Eyjafjallajökull volcano, which erupted in April last year, causing travel chaos around the world.

The University of Utah’s Bob Smith, an expert in Yellowstone’s volcanism told National Geographic: ‘It’s an extraordinary uplift, because it covers such a large area and the rates are so high.

‘At the beginning we were concerned it could be leading up to an eruption.’

Area of outstanding natural beauty: The Yellowstone caldera (circled in red) in Wyoming is the world's largest super-volcano.

Scorched earth: An artist's interpretation of how the Midway Basin in the park might look after an eruption.

But he added: ‘Once we saw the magma was at a depth of ten kilometres, we weren’t so concerned.

‘If it had been at depths of two or three kilometre we’d have been a lot more concerned.’

Robert B. Smith, professor of geophysics at the University of Utah, who has led a recent study into the volcano, added: ‘Our best evidence is that the crustal magma chamber is filling with molten rock.

‘But we have no idea how long this process goes on before there either is an eruption or the inflow of molten rock stops and the caldera deflates again’.

The Yellowstone Caldera is one of nature’s most awesome creations and sits atop North America’s largest volcanic field.

Its name means ‘cooking pot’ or ‘cauldron’ and it is formed when land collapses following a volcanic explosion.

In Yellowstone, some 400 miles beneath the Earth’s surface is a magma ‘hotspot’ which rises to 30 miles underground before spreading out over an area of 300 miles across.

Atop this, but still beneath the surface, sits the slumbering volcano.

July 22, 1980: Mount St Helens in Washington erupts. A Yellowstone caldera eruption would explode with a force a thousand times more powerful.

Scientists monitoring it believe that a swelling magma reservoir six miles underground may be causing the recent uplifts.

They have also been keeping an eye on a ‘pancake-shaped blob’ of molten rock he size of Los Angeles which was pressed into the volcano some time ago.

But due the extreme conditions it has been hard to work out what exactly is going on down below, leading researchers unable to say with certainty what will happen – or when.

Since the most recent blast 640,000 years ago there have been around 30 smaller eruptions, the most recent of which was 70,000 years ago.

They filled the caldera with ash and lava and made the flat landscape that draws thousands of tourists to Yellowstone National Park every year.

‘Clearly some deep source of magma feeds Yellowstone, and since Yellowstone has erupted in the recent geological past, we know that there is magma at shallower depths too,’ said Dan Dzurisin, a Yellowstone expert with the U.S. Geological Survey at Cascades Volcano Observatory in Washington State.

‘There has to be magma in the crust, or we wouldn’t have all the hydrothermal activity that we have.

‘There is so much heat coming out of Yellowstone right now that if it wasn’t being reheated by magma, the whole system would have gone stone cold since the time of the last eruption 70,000 years ago.’


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6 Responses to " World's largest volcano in Yellowstone National Park to wipe out two-thirds of US? "

  1. Horsts says:

    If this was to happen, I will be forced to bear arms against the Yankee invaders. America needs this.

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    • JamesTheJust says:

      Wow Horsts, and its only a little over two hundred miles from the caldera to the Canadian border.

      May your twisted dreams come true.

      PS: You’d be outgunned.

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  2. babybear says:

    Your a sad piece of human flesh. If we go so do you. It doesn’t care what flag your under you moron.

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  3. CMUSMC79 says:

    If this was to happen while there are still countries, instead of small pockets of humans, this volcanic eruption would be tantamount to the asteroid that hit the surface of the Earth during the times of the dinosaurs. Life across the entire globe would be thrown out of balance not just in the US.

    Think before you speak.

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  4. Baron Gifilte says:

    No room here,full of third world overspill.

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  5. Joe says:

    If this volcano does what scientist say it will do then we Americans will be living like third world people.We will make a “run on the selves”in the stores,big and small from the super Wall marts to the Krogers and Publix and Albertsons super markets to the Asian and other immigrant owned conveince stores.We will need as much toilet paper and caned foods and the best can openers that we can get our desperate hands on!We Americans will be a very desperate people.The white supremacist that are in the military and their militant Aryan nation militant civilian” brothers and sisters” won’t have to take orders from a Marxist mulatto Obama.Why should they?Laraza Chicanos can have the south west all to them selfs and the ashes from the Yellowstone volcano.I hope that Detroit gets burried by the ashes and kills off all of the Muslim population.I might not survive the fall out from this volcano but if I do,I will take as much toilet paper that I can find!

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