Super Volcanoes

This is the End

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Puyehue - Chile Super Volcano

“Apocalyptic” seems the best word to describe the images now emerging of ongoing eruptions at the Puyehue volcano range in southern Chile. Eruptions began after an ominous series of earthquakes on June 4, resulting in heavy ash falls, including in Argentine towns up to 100km away. The phenomenon of eruptions producing such dramatic lightning storms was first observed in 2007. The last time Puyehue erupted was in 1960.

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Super Volcanoes Defined

Is a volcano capable of producing a volcanic eruption with an ejecta volume greater than 1,000 km3 (240 cu mi). This is thousands of times larger than normal volcanic eruptions. Supervolcanoes can occur when magma in the mantle rises into the crust from a hotspot but is unable to break through the crust. Pressure builds in a large and growing magma pool until the crust is unable to contain the pressure. They can also form at convergent plate boundaries (for example, Toba) and continental hotspot locations (for example, the Yellowstone Caldera). Although there are only a handful of Quaternary supervolcanoes, supervolcanic eruptions typically cover huge areas with lava and volcanic ash and cause a long-lasting change to weather (such as the triggering of a small ice age) sufficient to threaten species with extinction.

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Simulation of the super volcano in Yellowstone

Not only was there a sudden rise in the elevation of the ground, and development of new cracks, but a gas called Helium-4, a very rare type of Helium, has begun coming out of the surface. It is the presence of this gas that has scientists quite concerned. If the Yellowstone Super Volcano were to erupt, it would be 2,000 times bigger than the eruption of Mount St. Helens in the 1980′s. Everything within 500 miles would be dead or destroyed within minutes, 2/3rds of the entire United States would be covered in volcanic ash and the climate of the entire planet would cool within a month.
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Simulated photograph based off a super volcanic eruption

Super volcanoes are capable of causing long-lasting change to weather, threatening the extinction of species, and covering huge areas with lava and ash. So this image demonstrates how after the lava has passed through and cooled everything would be left burned, destroyed, and deteriorating. Enormous layers of ash would cover everything because of all the ash that was shot from the super volcano.
What Would Happen if a Super Volcanic Eruption Happens Again ?

Cause of the ice age and death of the dinosaurs was effects of super volcanoes

Super volcanoes have been known to cause tremendous damage and kills thousands of people. The biggest super volcanoes have occurred over 75,000 years ago. Scientists believe that the ice age was caused by the eruption of a super volcano. It had exploded and destroyed everything within 500 miles of it. The real effect that caused the ice age was what it released into the air. It released a gas that had spread globally and blocked the sun raises in the atmosphere causing the earth to chill by 25 degrees or more. It made the earth a cold dark place, the ice age. Then scientists believe that a super volcano caused the death of the dinosaurs millions of years before the ice age. They said there is no proof of a meteor hitting (9:30 in video) but proof of a super volcano. So knowing how destructive they were before makes scientists worry about how destructive it can be today. Scientists believe that there is still a great possibility that there can be another super volcanic eruption that can cause millions of deaths, environmental and geographical change.
Yellowstone National Park & the Caldera Super Volcano [DOCUMENTARY]

Yellowstone super volcano a threat again?

The formation of Yellowstone was cause by earthquakes water and most important of all super volcanoes. There is immense evidence that proves there was and still is a super volcano in Yellowstone. The majority of the video discusses the evidence they found about the volcanic eruptions that happened yellowstone due to a super volcano. (Important evidence discuss at 11:00-11:50 then 36:25-37:00 then 43:00-43:48). It then goes on to talk about how there is still an eruption soon to come from this super volcano. There is hot springs, geysers, and volcanic earthquakes constantly happening in yellowstone. They said the chance over another catastrophic eruption from the super volcano under yellowstone can happen again 10,000 years from now or even tomorrow. So, a super volcanic eruption as a apocalyptic cause is definitely possible.

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.

A global disaster never witnessed by modern man may one day mushroom above the pine forests and hot springs of Yellowstone National Park in the United States. While ordinary volcanoes can kill thousands of people and destroy entire cities, it's thought a supervolcano could claim up to a billion lives and devastate continents.

A really big one could create the equivalent of a global nuclear winter. There would be devastation for many hundreds of kilometres near the eruption and there would be would be global crop failures because of the ash falling from the sky, and even more important, because of the rapid cooling of the climate.

Unlike traditional volcanoes, which are easily identifiable by their mountainous shape, supervolcanoes lurk far underneath the Earth's surface. They contain huge bulbs of molten magma, some over 100km long, which periodically explode, covering huge areas with ash hundreds of meters deep which scars the lungs of any animal breathing it in. Around 20 supervolcanoes have been discovered under the Earth's surface and when they blow the results can be catastrophic. The Lake Toba supervolcano in Indonesia erupted around 74,000 years ago and is estimated to have wiped out over two thirds of the human population at the time and dropped global temperatures by 10 degrees Celsius for a decade or more.