It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
...Yellowstone is merely the skin on top of a supervolcano - a giant pool of magma sitting just under the Earth's surface.
Twenty "smaller" supervolcanoes have been found nearby, on the Utah / Nevada state border. The new study published in the journal Geosphere shows that these volcanoes are not active today. But, 30 million years ago, they spilt more than 5500 cubic kilometres of magma during a one-week period.
reply to post by pandersway
Thanks for the heads up. I wonder what made them release this information now.
I'm not into doom porn, but all I'm saying is:
"Winter is coming."
Ps: I'm glad I don't live anywhere near that continent anymore. Phew! That was close.
edit on 11/12/2013 by Rainbowresidue because: (no reason given)
How often do volcanic eruptions occur at Yellowstone? Three extremely large explosive eruptions have occurred at Yellowstone in the past 2.1 million years with a recurrence interval of about 600,000 to 800,000 years. More frequent eruptions of basalt and rhyolite lava flows have occurred before and after the large caldera-forming events. For example, scientists have identified at least 27 different rhyolite lava flows that erupted after the most recent caldera eruptions, about 640,000 years ago, from vents inside the caldera. The most recent was about 70,000 years ago. Many of these eruptions were separated in time by several tens of thousands of years. Because the evidence of earlier eruptions may have been either buried or destroyed, we do not really know how often the volcano has actually erupted.
Adding to the disaster's massive scale, the huge amount of dust blasted into the upper atmosphere by the Tambora eruption contributed to a bizarre and highly destructive weather event the following year. And 1816 became known as The Year Without a Summer.