Volcano Updates | U.S. Geological Survey - USGS.gov
Feb 2, 2026 · The Yellowstone Volcano Observatory (YVO) provides long-term monitoring of volcanic and earthquake activity in the Yellowstone National Park region. Yellowstone is the site of the …
Yellowstone Caldera - Wikipedia
The Yellowstone Caldera, also known as the Yellowstone Plateau Volcanic Field, is a Quaternary caldera complex and volcanic plateau spanning parts of Wyoming, Idaho, and Montana. It is driven …
Yellowstone’s supervolcano is creating a 19-mile bulge
Feb 11, 2026 · In Yellowstone National Park, a bulge the size of 279 football fields has risen by an inch since last July. With no signs of slowing down, the bump that’s roughly 19 miles across may cause …
Volcano - Yellowstone National Park (U.S. National Park Service)
Apr 18, 2025 · The Yellowstone caldera was created by a massive volcanic eruption approximately 631,000 years ago. Later lava flows filled in much of the caldera, now it is 30 x 45 miles.
Yellowstone Caldera | Volcano type, Eruption, Size, Map ...
Jan 16, 2026 · Yellowstone National Park is situated over a supervolcano that is capable of an eruption of magnitude 8. It has had three massive eruptions, all of which created calderas. The first …
Yellowstone’s 19-Mile Bulge Is Growing: Why the Supervolcano ...
Feb 16, 2026 · A 19-mile uplift zone is rising at Yellowstone’s north caldera rim. Here’s what’s causing it, what USGS monitoring shows, and why it’s not an eruption warning.
Yellowstone is a Volcano (more specifically, a Supervolcano)
As you walk around the park you may think: “I don’t see any volcanos?!” That’s because much of the entire park is a volcano – and the bubbling geysers and hot springs are an indication of the churning …