Mesa Falls erupted 67 cubic m (280 cubic km) of material, so — while still about 10 times bigger than the 1980 eruption of Mount St. Helens — is not considered a super-eruption.

Mesa Falls erupted 67 cubic m (280 cubic km) of material, so — while still about 10 times bigger than the 1980 eruption of Mount St. Helens — is not considered a super-eruption.

The most recent eruption, which happened roughly 640,000 years ago, created the Mesa Falls ash bed, stretching east-southeast from the Yellowstone Plateau, scattering ash primarily in Colorado ...

In the case of the Mesa Falls eruption, geologists used the hydration rinds in the quartz crystal embayments to understand what the region looked like after the eruption occurred.

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.

Scientists have found previously undocumented ash deposits buried beneath the Lava Creek Tuff in Wyoming — and at least one of them could be from an unknown volcanic eruption, they say.

Yellowstone is one of the best known supervolcanoes. The caldera formed as a result of three supereruptions over the last 2.1 million years – the Huckleberry Ridge eruption, the Mesa Falls ...

Man Falls Off Steep 30-Foot Cliff Trying to Get 'a Closer Look' of Kīlauea Volcano Eruption A tree ultimately broke his fall, saving the man from an additional, potentially fatal 100-foot fall to ...

The second was the Mesa Falls eruption which took place 1.3million years ago and created the Henry's Fork Caldera and the Mesa Falls Tuff.

The most recent eruption, which happened roughly 640,000 years ago, created the Mesa Falls ash bed, stretching east-southeast from the Yellowstone Plateau, scattering ash primarily in Colorado ...

A 30-minute drive between Ashton and Island Park will take you through the history of the first two caldera systems that formed in the Yellowstone region.