A Conversation for Yellowstone National Park, USA- Part III: The Park Years
Caldera
. Posted Oct 22, 2004
was this yelly stone not an old vulcano
sleeping 
resting 
waiting for the penguins to start burnin again
Caldera
Scandrea Posted Oct 22, 2004
Yes, actually, Yellowstone is a supervolcano!
The last time it erupted, it took out a 13 mile stretch of a mountain range, and buried Nebraska in 8 feet of ash. It's above a hot spot in the Earth's mantle, meaning it's still active (hence the geysers) and very likely to erupt again! Though it would give some warning, like earthquakes, and likely lava flows before it exploded.
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Caldera
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