Powerful Supervolcano Beneath Yellowstone National Park Could Wipe Out Civilization

Posted by on Jan 06, 2014 at 7:36 am

Has Al Gore mentioned this as a possible threat to the planet?

The eruption of a “supervolcano” hundreds of times more powerful than conventional volcanoes – with the potential to wipe out civilisation as we know it – is more likely than previously thought, a study has found.

An analysis of the molten rock within the dormant supervolcano beneath Yellowstone National Park in the United States has revealed that an eruption is possible without any external trigger, scientists said.

Scientists previously believed many supervolcanic eruptions needed earthquakes to break open the Earth’s crust so magma could escape. But new research suggests that this can happen as a result of the build-up of pressure.

Supervolcanoes represent the second most globally cataclysmic event – next to an asteroid strike – and they have been responsible in the past for mass extinctions, long-term changes to the climate and shorter-term “volcanic winters” caused  by volcanic ash cutting out the sunlight.

The last known supervolcanic eruption was believed to have occurred about 70,000 years ago at the site today of Lake Toba in Sumatra, Indonesia. It caused a volcanic winter that blocked out the sun for between six to eight years, and resulted in a period of global cooling lasting a thousand years.

A supervolcano under Yellowstone Park in Wyoming last erupted about 600,000 years ago, sending more than 1,000 cubic kilometres of ash and lava into the atmosphere – about 100 times more than the Mount Pinatubo eruption in the Philippines in 1982, which caused a noticeable period of global cooling.

Wait, what? A noticeable period of global cooling? How come nobody has mentioned this the past 32 years?  Who knows, maybe it’s a reason why much of the United States today is mired in subzero weather.

 Millions of people across the United States on Monday were braced for a “life-threatening” bitter Arctic blast that could send temperatures plummeting to their coldest in 20 years.

The northeastern United States and parts of Canada have endured heavy snow and deadly sub-zero conditions since the start of the year, but the deep freeze is now moving through much of the country east of the Rocky Mountains.

The wind chill from the rare “polar vortex” could make it feel as cold as -60 Fahrenheit (-51 Celsius) in places, weather forecasters say, prompting authorities to warn residents to stay indoors and stock up on food.

“Cold temperatures and gusty winds associated with an arctic air mass will continue dangerously cold wind chills as far south as Brownsville, Texas [on the border with Mexico] and central Florida,” the National Weather Service said.

Dangerous wind chills in Central Florida? Hmm. Speaking of Gore, he’s been noticeably silent about the brutal cold, not to mention the folly of the climate clowns getting stick in the ice in Antarctica.

7 Responses to “Powerful Supervolcano Beneath Yellowstone National Park Could Wipe Out Civilization”

  1. Marooned on 6/06/14 at 12:07 pm

    “Catastrophe: An Investigation into the Origins of the Modern World,” by David Keys makes a good case for an historically significant super volcanic eruption in 535.

  2. CitizenEgg on 6/06/14 at 1:13 pm

    Maybe we’ll be safe if we can get those Barry-cades put back up around Old Faithful.

  3. Marooned on 6/06/14 at 1:24 pm

    P.S. The Yellowstone eruption of two million BC, (BCE for the atheists out there,) released about seventy times the energy consumed per year nowadays in the US of A. Contrast that with the US nuclear arsenal which contains about one year’s worth of US energy consumption of about one-hundred quadrillion BTU per year or the equivalent of about eight-hundred seventy billion gallons of gasoline.

  4. The DRILL SGT on 6/06/14 at 1:58 pm

    My memory from the Yellowstone Visitors Center was that the result in previous events was an ash deposit multiple feet thick covering the entire area from Seattle to NYC. And the death of all life in the ash zone above the level of earth worms…

  5. Richmond on 13/13/14 at 7:39 pm

    Mt. Pinatubo erupted in 1990 and the Global cooling happened for only a year. This is taught to us in school since the early 1990s.