Scientists have never been able to separate the sound of thunder from the rest of an eruption's clatter.
The crystals carry a memory of environmental changes the way trees do with their rings.
The volcano has the potential to turn deadly.
The concern surrounds volcanoes in the U.S., Mexico, Japan and elsewhere.
"Man, the changes would be so much bigger than anything we've ever seen."
Using a network of thousands of monitors, geologists realized New England isn't as peaceful as it looks.
Indonesia's Disaster Mitigation Agency set up an exclusion zone and ordered people to "immediately evacuate."
And someday soon, we're going to regret it.
When it comes to eruptions, everything is unpredictable.
At the time, volcanoes in Iceland were erupting 50 times more often than today.
"The research did not analyze the likelihood that another supereruption at Yellowstone would occur. Period."
There's no way to know how many eruptions are in the cards.
Source of magma has been discovered beneath the city of Pozzuoli.
Scientists recently discovered almost 100 'new' volcanoes under the ice.
Fossil evidence forces major rethink of how and when humans arrived in Southeast Asia.
Communities living near the 'Volcano of Fire' are on standby as ash continues to shoot into the sky, raising fears of a massive eruption.
Italy's supervolcano appears to have been building energy over the last 60 years—and it could be ready to erupt.