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YELLOWSTONE NATIONAL PARK -
The world's authority on Yellowstone National Park’s supervolcano says it's more than twice as big as scientists once thought.
Smith and his students use seismographs to map the magma pool underneath Yellowstone's volcano and satellites to determine how much the land swells or bulges.
They found that the magma is, "2.5 times larger than we had originally imaged," Smith said.
The magma movement is signaled by earthquakes.
Smith mentioned the 4.8 magnitude Norris-area earthquake that damaged Lake Hotel last spring. "It's the biggest earthquake in 30 years."
So, how likely is it that the big one will blow soon?
"If we were to have another big eruption, it would affect a large area, on the order of several states,” Smith said. “But, as I said, that probability is very, very, very, very small. In my calculations, it's .0001 percent."
Smith says the magma pool isn't getting bigger. His team added more seismographs, and they're getting a clearer picture of the magma.
originally posted by: the owlbear
a reply to: rickymouse
If it went full supervolcano...you and a few other ATS ers would be on my mind as well as friends and family. It would kill every air filter for every truck trying to clear the ash off like snow. Roofs would collapse.
I just hope it has a little burp. Beautiful out there.
originally posted by: rickymouse
A little ash for my garden might not be so bad.