Scientists debunk fears of a Yellowstone eruption

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PostSat Apr 05, 2014 11:32 am » by *WillEase*




A bison herd stampeding through Yellowstone National Park is not proof of an upcoming volcanic eruption, geologists and park officials have said, despite a recent viral video that implies the animals' instincts tipped them off to an upcoming disaster.

The video was posted online on March 20 and has since attracted millions of views. It shows dozens of bisons running along a road in the park, a popular attraction for tourists and outdoorsmen alike. Much of Yellowstone does sit on the surface of a long dormant volcanic caldera, or super volcano, which last erupted nearly 700,000 years ago.

Images of the running bison were quickly picked up by various media outlets, prompting comments from readers worried about issues ranging from biblical doom to the effects of global warming. Yellowstone officials admitted they have been overwhelmed by hundreds of calls and emails that have come in since the video, which featured a purported survivalist discussing an “imminent eruption,” went viral.

“It was a spring-like day and they were frisky,” park spokeswoman Amy Bartlett told Reuters of the rushing bison. “Contrary to online reports, it's a natural occurrence and not the end of the world.”

The truth is much easier to explain than a supervolcano. Yellowstone National Park public affairs chief Al Nash told BuzzFeed that the bison migrate from the park during the colder months to find food at lower elevation. Then, after the winter snow begins to melt, they return.

“We have seen no signs to suggest the Yellowstone volcano is about to erupt,” he said. The video of the bison actually shows the animals galloping deeper into the park, not away from it, officials said.

Claims of an imminent eruption became more credible to some earlier this week when a 4.8 magnitude earthquake shook the northwest section of the park. No injuries were reported, and the damage that was reported was not enough to alter any substantial portion of the park – although the quake was the strongest to hit the park since 1980.

The earthquake did occur, however, near “an area or ground uplift tied to the upward movement of molten rock in the super-volcano, whose mouth, or caldera, is 50 miles long and 30 miles wide,” according to Reuters. Peter Cervelli, associate director for science and technology at the US Geological Survey's Volcano Science Center in California, told journalist Laura Zuckerman that uplift is rising by about 15 centimeters each year, although that does not make volcanic activity any more likely.

“The chance of that happening in our lifetimes is exceedingly insignificant,” he said.

Conclusive research on whether animals are able to predict catastrophic events is lacking, although a number of behavior analysts have publicly asserted that certain creatures exhibit odd behavior before major events take place.

Florida scientists monitoring 14 blacktip sharks via electronic monitor reported that the sharks dove into deeper waters 12 hours before Hurricane Charley struck in 2004. They observed the sharks for four years before this event and determined that their relocation – which lasted for two weeks after Charley had dissipated – was an anomaly.

Similar instances – including elephants trumpeting, stomping, and retreating to higher ground 12 hours before the 2005 tsunami ravaged the Indian coastline – have been reported throughout the world.

http://rt.com/usa/scientists-debunk-yel ... viral-513/
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PostSat Apr 05, 2014 5:21 pm » by Swiftvengeance


Jellystone science team. :badair:

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PostSat Apr 05, 2014 6:00 pm » by Hurtswhenipee


THESE SCIENTISTS WOULD DISAGREE

Some scientists believe in Black Holes some don't, Some scientists believe in the Big Bang others don't. There are two sides to every fence.

LOS ANGELES, CA (Catholic Online) - It was previously believed that an external trigger, such as an earthquake, would cause such an eruption. However, tests at the European Synchrotron Radiation Facility in Grenoble now prove that the sheer volume of liquid magma is enough to trigger a super-eruption.

Lead author Wim Malfait, of Zurich says that simulating the intense heat and pressure inside these "sleeping giants" could help predict a future disaster.

"We knew the clock was ticking but we didn't know how fast: what would it take to trigger a super-eruption? Now we know you don't need any extra factor - a supervolcano can erupt due to its enormous size alone.

"Once you get enough melt, you can start an eruption just like that."

Among the supervolcanoes on Earth are Lake Toba in Indonesia, Lake Taupo in New Zealand and the somewhat smaller Phlegraean Fields near Naples, Italy.

Super-eruptions are very infrequent, occurring only once every 100,000 years on average. But when they do occur - the world's climate is affected drastically.

When a supervolcano erupted 600,000 years ago in Wyoming, in what today is Yellowstone National Park, it ejected enough ash to bury a large city to a depth of a few kilometers. This ejection was 100 times bigger than Mt Pinatubo in the Philippines in 1992 and dwarfs even historic eruptions like Krakatoa in 1883.

"This is something that, as a species, we will eventually have to deal with. It will happen in future," Dr. Malfait says. "You could compare it to an asteroid impact - the risk at any given time is small, but when it happens the consequences will be catastrophic."

Being able to predict such a catastrophe is critical. The good news is if Yellowstone happened to be on the brink of an eruption, the good news is that we will still see a warning, Malfait told television reporters.

"The ground would probably rise hundreds of meters - a lot more than it does now. We think Yellowstone currently has 10-30 percent partial melt, and for the overpressure to be high enough to erupt would take about 50 percent."
https://www.catholic.org/news/technolog ... p?id=53797

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?

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
http://www.huffingtonpost.com/2012/06/0 ... 69214.html



A new study by the University of Utah revealed that the hot molten rock beneath Yellowstone National Park is 2 ½ times larger than previously estimated, meaning the park’s supervolcano has the potential to erupt with a force about 2,000 times the size of Mount St. Helens. By measuring seismic waves from earthquakes, scientists were able to map the magma chamber underneath the Yellowstone caldera as 55 miles long, lead author Jamie Farrell of the University of Utah said after presenting his findings last week to the American Geophysical Union. The last Yellowstone eruption happened 640,000 years ago, according to the U.S. Geological Survey.

The chamber is 18 miles wide and runs at depths from 3 to 9 miles below the earth, he added. That means there is enough volcanic material below the surface to match the largest of the supervolcano’s three eruptions over the last 2.1 million years, Farrell said. The largest blast — the volcano’s first — was 2,000 times the size of the 1980 eruption of Mount St. Helens in Washington state. The USGS’ Yellowstone Volcano Observatory listed the park’s volcano alert level as “normal” for December.

Some scientists tracking earthquake swarms under Yellowstone have warned the caldera is overdue to erupt. Farrell dismissed that notion, saying there isn’t enough data to estimate the timing of the next eruption. “We do believe there will be another eruption, we just don’t know when." A large earthquake at Yellowstone is much more likely than a volcano eruption, Farrell added. The 7.5-magnitude Hebgen Lake earthquake killed 28 people there in 1959.

Some 640,000 years ago there was a colossal cauldron of magma, a supervolcano, that exploded with such violence that it left an ash layer almost ten feet deep a thousand miles away in eastern Nebraska killing all plant life and covering almost all of the United States west of the Mississippi. Modern geological surveys have shown that this supervolcano erupts catastrophically every 600,000 years. The land that supervolcano is trapped in was called by Blackfoot Indians 'the land of evil spirits' -what we know today as Yellowstone National Park.
http://www.dailygalaxy.com/my_weblog/20 ... imes-.html
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PostMon Apr 28, 2014 3:39 am » by Malogg


Scientists debunk fears of a Yellowstone eruption

BAWS :roll:

Published on April 27, 2014 Posted By Jack Still
:::: MAJOR HIGH RED ALERT WARNING ::::
Yellowstone Seismograph Lake Butte
Here's a link to all of Yellowstone's Seismographs
http://www.isthisthingon.org/Yellowstone/daythumbs.php
Watch for Major Earthquakes & Volcanic Eruptions!!!
( ( ( PLEASE SHARE THIS INFO ) ) )
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PostMon Apr 28, 2014 2:43 pm » by Evildweeb


.

Ok, "certain scientists" debunk a Yellowstone eruption.

While on the other hand, the USGS truckloaded a shitstorm of sensors up there just recently in an apparent panic.

So who are these guys in the USGS? I think they're called - uh wait for it...........





SCIENTISTS



:bang;


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PostMon Apr 28, 2014 5:23 pm » by *WillEase*


Evildweeb wrote:.

Ok, "certain scientists" debunk a Yellowstone eruption.

While on the other hand, the USGS truckloaded a shitstorm of sensors up there just recently in an apparent panic.

So who are these guys in the USGS? I think they're called - uh wait for it...........

SCIENTISTS



I've said it before, and I'll say it again.

You are - wait for it....



PARANOID.

The whole idea that the powers that be are hiding data about impending doom is ludacris.
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PostMon Apr 28, 2014 7:28 pm » by The57ironman


*WillEase* wrote:

The whole idea that the powers that be are hiding data about impending doom is ludacris.

.


...wait for it..













....the powers that be are hiding data... :owned:

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