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

Recent Israeli Synagogue Attack, a Possible False Flag?
2014 11 21
Dear Friends - I woke up yesterday morning to see a newspaper lying on the kitchen table with the front page proclaiming that five people were slain in an Israeli synagogue after a so-called "Palestinian attack." Some members of the media said that four people were killed, others said five, so it seems like that there was some confusion (or ...
The Michael Brown Shooting, Race Baiting for Political Power and Militarization of the Police
2014 11 21
From Youtube: The evidence clearly shows that Officer Darren Wilson was justified in shooting Michael Brown, so why is this case being hyped by the mainstream media and the leftist political establishment?
Detekt: A New Malware Detection Tool That Can Expose Illegitimate State Surveillance
2014 11 21
Recent years have seen a boom in the adoption of surveillance technology by governments around the world, including spyware that provides its purchasers the unchecked ability to target remote Internet users’ computers, to read their personal emails, listen in on private audio calls, record keystrokes and passwords, and remotely activate their computer’s camera or microphone. EFF, together with Amnesty International, ...
New UK spy chief says tech giants aid terrorism, privacy not ‘absolute right’
2014 11 21
Robert Hannigan, the new head of GCHQ The new head of Britain’s GCHQ, the UK equivalent of the NSA in the U.S., said he believes privacy is not an absolute right and that tech giants must open themselves up to intelligence agencies. “GCHQ is happy to be part of a mature debate on privacy in the digital age,” Hannigan said. “But privacy ...
LOL: Atheist Feminist Pornographer Used as Moral Authority in T-shirt Row
2014 11 21
Dr. Matt Taylor was thrust into the headlines this last week, largely for his lead role in successfully landing a spacecraft on a comet 300 million miles from earth that travels at a speed of 85,000 mph. In short, Taylor and his colleagues pulled off one of the most amazing achievements in contemporary science and space exploration, and in a ...
More News »