The last major eruption of the Yellowstone supervolcano happened around 630 000 years ago, and was violent enough to create a collapsed crater, or caldera, over 60 km across. Though it shows no sign ...

A 53,000-pound vibroseis truck, with a hydraulic vibration plate that creates signals like tiny earthquakes. The truck is parked at a roadside pullout near the Continental Divide in Yellowstone ...

Yellowstone is behaving normally, as it has for more than 140 years, according to the Yellowstone Volcano Observatory. Yellowstone has not erupted in some 70,000 years, and the odds of a large ...

New mapping of the magma lying beneath Yellowstone National Park sheds light on where volcanic activity is shifting, and the ...

Scientists have discovered a giant 'magma cap' under Yellowstone National Park. The cap is likely playing a critical role in preventing a massive volcanic eruption.

This is equivalent to the volume of magma released roughly 1.3 million years ago during the Mesa Falls eruption—the second most recent caldera-forming eruption at Yellowstone.

Underneath Yellowstone National Park, magma bubbles and flows. But exactly how close it is to the surface has long been a mystery to scientists — until now. For the first time, researchers have ...

Yellowstone is behaving normally, as it has for more than 140 years, according to the Yellowstone Volcano Observatory. Yellowstone has not erupted in some 70,000 years, and the odds of a large ...

The study, which even relied on a 53,000-pound vibroseis truck to send seismic waves into the ground, offers a new means of monitoring not only Yellowstone but other volcanic systems.

Yellowstone is behaving normally, as it has for more than 140 years, according to the Yellowstone Volcano Observatory. Yellowstone has not erupted in some 70,000 years, and the odds of a large ...

Yellowstone is behaving normally, as it has for more than 140 years, according to the Yellowstone Volcano Observatory. Yellowstone has not erupted in some 70,000 years, and the odds of a large ...

Yellowstone is behaving normally, as it has for more than 140 years, according to the Yellowstone Volcano Observatory. Yellowstone has not erupted in some 70,000 years, and the odds of a large ...