What if Yellowstone’s supervolcano erupts?
2012 06 04

By Natalie Wolchover | Life’s Little Mysteries



A rough estimate based on geologic records indicates there’s a 1-in-10,000 chance of a "supereruption" at Yellowstone during our lifetimes. However, given the erratic nature of volcanoes, that number doesn’t mean much. The bulging pocket of magma swishing around beneath Old Faithful might never blow its lid again. Or, it might put on a surprise fireworks show next Independence Day. Scientists just don’t know.
But if or when it blows, what will actually happen? Will it be the end of us all, or just a big knock to the tourism industry in Wyoming?


Yellowstone National Park, 2011. (Photo: ZUMA Press)


Each of the three past supereruptions of the Yellowstone hotspot spewed more than 1,000 cubic kilometers of magma into the environment — the benchmark of a "supervolcano." According to Jacob Lowenstern, scientist-in-charge at the Yellowstone Volcano Observatory, that’s a large enough eruption to cover much of North America in an ash blanket of varying thickness.

"The ash is thick (more than about 30 centimeters of ash) near the eruption source and a small fraction of a millimeter once you move 2,000 miles away. It’s fair to say that a trace of ash would be found over most of the United States, though it would only be thick enough to collapse roofs in the states closest to Yellowstone," Lowenstern told Life’s Little Mysteries.

With enough warning, the states near Yellowstone could be evacuated, which would largely avoid a tremendous loss of life caused by the downpour of ash, the scientists said. But that’s just in the short term; the aftermath would be the rub. For several days, ash would hang in the air, making it difficult to breathe. And that blanket of ash covering the country would smother vegetation and pollute the water supply, quickly leading to a nationwide food crisis. "A lot of people would perish," said Stephen Self, director of the Volcano Dynamics Group at the Open University in the U.K. He envisions American refugees lining up at the Mexican border.

Perhaps foreign governments would come to our aid and embark on a major ash cleanup operation, but without such an effort, inhospitable conditions would persist in the midwestern U.S. for about a decade.

"The records show that [new] vegetation starts to take hold about 10 years after supereruptions. It depends on how much rainfall the area receives, as rainfall is the main way you clear ash off the land," Self said.

As for the rest of the world, it would face a few years of mild climate change caused by the supereruption’s ash cloud, which would wrap around the globe, casting Earth in shadow for several days and altering the chemical composition of the atmosphere for a decade or so. However, recent research shows the global impacts of supervolcanoes are less severe than scientists once thought, and a Yellowstone supereruption might be especially unimposing because its magma contains minimal sulfur. Sulfur gas produces particles called aerosols, which can cool the climate by blocking sunlight.

"The huge volume of magma means there would still be some sulfur injected into the atmosphere, but work has shown that you reach a sort of limit in the amount of aerosols you can produce with sulfur gas. It means that our earlier suggestions that there would be a severe temperature change is not right," Self said.

Based on the new models, the scientists now think the vast majority of Earth’s species would weather a Yellowstone supereruption just fine (except, of course, for those knocked out due to proximity of the initial blast). They don’t see any evidence in the geologic record of mass extinctions coinciding with supereruptions, and they don’t predict extinctions to result from such geologic events in the future.

"The last time Yellowstone erupted, no extinctions took place," said Michael Rampino, a biologist and geologist at New York University. "Supereruptions are not extinction-level events," he said, but added that they can obviously cause problems for civilization.


[...]


Read the full article at: mothernaturenetwork.com






Video from: YouTube.com



Video from: YouTube.com





Also tune into:


Mary Sean Young - Hour 2 - The Government Lie & Planned Catastrophe

Robert Schoch - Hour 2 - Forgotten Civilization & Catastrophic Solar Outbursts

Will Hart - Solar Flare Apocalypse & Comets

Barbara Hand Clow - Hour 1 - Catastrophobia & The Archons

Richard Sauder - Fuk-u-shima, Nuclear Catastrophe & Collective Karma

Edmund Marriage - Global Catastrophe, Restart of Civilization & The Anu-Nagi (The Shining Ones)

Geoff Stray - Beyond 2012: Catastrophe or Ecstasy

Robert Felix - The Coming Ice Age

Tim Ball - Climategate & The Anthropogenic Global Warming Fraud

Scott Stevens - Weather Wars, Chemtrails, Gulf Oil Spill & Environmental Destruction











Related Articles
Cosmographic Research: Catastrophism and Ancient Cultures
Cyprus naval blast a ’catastrophe of biblical proportions’
Are We Prepared for a Catastrophic Solar Storm?
Emergency Special Report: Japan’s Earthquake, Hidden Nuclear Catastrophe
Apocalypse how? Revealing the next catastrophic threat to our world


Latest News from our Front Page

Whistleblower: Margaret Thatcher knew all about underage sex ring
2014 07 29
Margaret Thatcher was told about alleged sex parties with under-age boys held by one of her closest aides claims her former personal bodyguard. Barry Strevens, who worked as the prime minister’s personal bodyguard, said that he passed on allegations about her confidant Sir Peter Morrison. The former senior police officer said that Lady Thatcher appointed Sir Peter deputy party chairman of the ...
The Absurd, Bureaucratic Hell That Is the American Police State
2014 07 29
“The greatest evil is not now done in those sordid ‘dens of crime’ that Dickens loved to paint. It is not done even in concentration camps and labour camps. In those we see its final result. But it is conceived and ordered (moved, seconded, carried, and minuted) in clean, carpeted, warmed and well-lighted offices, by quiet ...
Australian Government Pushing ‘Internet Tax’ To Pay For NSA Style Spying
2014 07 29
Forcing private companies to become mass surveillance hubs The Australian government is pushing to implement a ”surveillance tax” on the people of the country in order to pay for a mandate that would see communications companies retaining data on customers for two years. In a disturbing development that should serve as a warning to Americans, the Australian Attorney-General admitted that the surveillance ...
Japanese leader proposes first-ever ’Robot Olympics’
2014 07 29
Nations of the world will be sending their most talented athletes to Tokyo in 2020 for the Olympic Games – but if Japanese Prime Minister Shinzo Abe gets his way, they might also be pitting robots against each other. Abe announced his vision while touring robotics factories in Tokyo and Saitama, which is located just north of the country’s capital. According ...
Israel Student Union Set Up “War Room” to Sell Gaza Massacre on Facebook
2014 07 29
This article was published on July 14, 2014. The death toll in Gaza as of today, July 23, 2014, reaches 678 according to Al-Akhbar. Students at the IDC Herzliya “war room,” seen here in a screenshot, focus on posting propaganda justifying Israel’s attack on Gaza on Facebook. As the death toll from Israel’s savage bombardment of Gaza continues to climb, Israel has ...
More News »