The most recent eruption of the Yellowstone caldera occurred approximately 640,000 years ago, while the last lava flow happened around 70,000 years ago.These events, though ancient by human ...

The caldera is the enormous volcanic crater left from the last time Yellowstone experienced a giant eruption, 640,000 years ago. It covers an area about 30 by 45 miles .

The Yellowstone Volcano Observatory said Yellowstone is behaving normally, as it has over the past 140 years. Yellowstone has not erupted in some 70,000 years, and the odds of a large eruption in ...

Map of the known ash-fall boundaries for several Yellowstone Supervolcano eruptions. Picture: USGS.

While officials have said the hydrothermal explosion in Yellowstone earlier this month isn’t a warning sign of impending doom, it’s hard not to wonder what a ‘supereruption’… ...

The Yellowstone Volcano Observatory said Yellowstone is behaving normally, as it has over the past 140 years. Yellowstone has not erupted in some 70,000 years, and the odds of a large eruption in ...

The Yellowstone Volcano Observatory said Yellowstone is behaving normally, as it has over the past 140 years. Yellowstone has not erupted in some 70,000 years, and the odds of a large eruption in ...

The Yellowstone Volcano Observatory said Yellowstone is behaving normally, as it has over the past 140 years. Yellowstone has not erupted in some 70,000 years, and the odds of a large eruption in ...

The Yellowstone Volcano Observatory said Yellowstone is behaving normally, as it has over the past 140 years. Yellowstone has not erupted in some 70,000 years, and the odds of a large eruption in ...