It has produced three caldera-forming eruptions in the past 3 million years: the Huckleberry Ridge Tuff eruption, 2.1 million years ago; the Mesa Falls eruption, 1.3 million years ago; and the ...

The last caldera-forming eruption at Yellowstone "was much more complex than previously thought," according to the annual report about activity at the supervolcano. The last super-eruption at ...

In geology, even small layers can tell big stories. But figuring out the origins of such small layers can be a challenge, ...

Yellowstone had massive eruptions 2.1 million years ago, 1.3 million years ago, and 640,000 years ago, as well as several smaller ones. An eruption in the near future would fit the timeline.

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 ...

Caldera-forming eruptions from the Yellowstone hotspot system have occurred repeatedly over the past 16 million years or so, with several of these eruptions being larger than that which formed ...

Past methods employed to probe the volcanic ... of magma released roughly 1.3 million years ago during the Mesa Falls eruption—the second most recent caldera-forming eruption at Yellowstone.

Mantle plumes were the implicit link in previous studies relating BLOBS to giant volcanic eruptions. Their shape is a bit ...

“Nowhere in Yellowstone do we have regions that are capable of eruption,” the magma maven explained. In other words, it will not be an issue during our lifetime.

Applying this approach to Yellowstone, Stelten noted that the volcano has not erupted in the past 70,000 years, but was active with rhyolite lava flows every 20,000 years on average between ...

The supervolcano that lies beneath Yellowstone National Park might have erupted less powerfully but more frequently than previously thought, new research suggests. In the ancient past, the ...