Each cycle involved a large ignimbrite eruption, continental-scale ash-fall, and caldera collapse, preceded and followed by smaller lava flows and tuffs. The first and also the largest cycle was …

Yellowstone Caldera, enormous crater in the western-central portion of Yellowstone National Park, northwestern Wyoming, that was formed by a cataclysmic volcanic eruption some …

Jan 2, 2026 · At least three small eruptions occurred at Black Diamond Pool in Biscuit Basin, site of a hydrothermal explosion in 2024. The eruptions were captured by camera views and …

Jan 9, 2025 · Despite the large volume of magma pooling below Yellowstone, the caldera isn't likely to erupt anytime soon. That's because the magma sits in pore spaces in solid rock within …

Jun 3, 2025 · As the underground magma chamber emptied, the ground above it collapsed and created the first of Yellowstone’s three calderas. This eruption 2.1 million years ago—among …

Yellowstone now sits over the hotspot, and its rocks record evidence of the three most recent caldera-forming eruptions, which occurred 2.1 million, 1.3 million, and 631,000 years ago.

The Yellowstone Plateau Volcanic Field Three extraordinarily large explosive eruptions in the past 2.1 million years each created a giant caldera within or west of Yellowstone National Park. …

Jan 19, 2025 · Deep within the Yellowstone Caldera, the bowl-shaped rock cauldron at the heart of Yellowstone National Park, there’s a clue that any future eruption will occur near the …

This titanic event, one of the five largest individual volcanic eruptions known anywhere on the Earth, formed a caldera more than 60 miles (100 km) across. A similar, smaller but still huge …

After each of these eruptions, the Yellowstone supervolcano collapsed on itself, sucking in trees, mountains and everything else in the landscape. The depression formed by this phenomenon …