Yellowstone had massive eruptions 2.1 million years ago, 1.3 million years ago, and 640,000 years ago, as well as several ...

The last super-eruption at Yellowstone volcano, which occurred 631,000 years ago, was not one huge explosion. Instead, new research suggests it was a series of eruptions or multiple vents spewing ...

"For example, the West Thumb of Yellowstone Lake is a caldera formed during an eruption 160,000 years ago, called the Tuff of Bluff Point." Such smaller eruptions could be explosive too.

It’s still possible that the northeastern portion of the park could erupt in a massive explosive eruption similar to those that have occurred at Yellowstone in the past 2.1 million years.

The magma underneath Yellowstone would also need to be heated up – a lot: Right now seismic studies indicate it’s mostly solidified, not the hot liquid required for an eruption.

Yellowstone National Park, known for erupting geysers like Old Faithful, ... The last eruption to occur at Yellowstone was 70,000 years ago, according to the United States Geological Survey.

However, the system’s behavior may be helping to keep Yellowstone from erupting. While Schmandt and his fellow researchers found bubbles — a potential sign of an impending eruption — within ...

Stock image of a geyser in Yellowstone National Park. The park's last volcanic eruption was 1,000 times greater than the Mount Saint Helens one in 1980.

Media reports have often claimed that Yellowstone is due to erupt. They claim that because the last eruption of the supervolcano was 70,000 years ago, it's bound to blow soon.

Because each Yellowstone eruption would have involved different portions of the continent being melted, Dr. Knott reasoned that each eruption ought to be subtly different in its chemical profile.

YELLOWSTONE volcano could one day wipe out large swathes of the US, and blanket the country in a sea of thick volcanic ash, scientists have gravely warned ahead of eruption.