Caldera Chronicles

Sediment cores show that Yellowstone Lake has been a site of repeated hydrothermal explosions over the last 13,000 years. Clues hidden in that...

The Hebgen Lake earthquake is the largest to have struck the Intermountain West region of the United States. High-resolution topographic data from...

The thick ash deposits from past large Yellowstone explosive eruptions are well known, and can be seen throughout the region.  But there are also...

Summer 2023 marks 146 years since the flight of the Nez Perce, when an indigenous tribe crossed Yellowstone in an attempt to reach Canada and during a...

Yellowstone has numerous hot springs, but not all of them boil at the same temperature. This is because the boiling temperature depends on the...

The Yellowstone Volcano Observatory recently published a monitoring plan for better understanding and tracking earthquake, magmatic, and hydrothermal...

You’ve probably heard about the record flooding that took place in Yellowstone on June 10–13, 2022, but did you ever think if the many seismometers in...

Last week, flooding at Yellowstone caused catastrophic damage in the region, destroying homes, roads, and bridges, and isolating entire communities...

Studies of sediment on the floor of Yellowstone Lake reveal a dynamic history marked by some of the largest-known hydrothermal explosions on Earth...

Yellowstone National Park is known for its impressive thermal features and abundant wildlife, including bears, wolves, and bison. But did you know the...

The Yellowstone Volcano Observatory consortium recently held its first in-person meeting in 4 years.  The workshop provided a chance not only to...

Visitors to many National Parks in the USA notice and enjoy the iconic buildings made with local materials. These structures are so unique that the...

May means the start of geological field work in Yellowstone, and the Yellowstone Volcano Observatory has a lot planned for 2022!

For the first time in two years, Yellowstone National Park visitors will be able to drive from Tower to Canyon Junctions across Dunraven Pass, now...

The Yellowstone Volcano Observatory 2021 annual report has been published!  Your one-stop shop for the year that was in Yellowstone geological...

Today, Lower Geyser Basin in Yellowstone is a treeless plain characterized by steaming ground, geysers, and mudpots. But thousands of years ago, it...

Deep beneath Yellowstone is a mysterious place, where water cannot penetrate and rocks flow like silly putty. Strange conditions exist in the deepest...

In February, 100 scientists got together to practice coordinating themselves during a pretend volcanic eruption.

On the North side of the Mallard Lake resurgent dome there are several isolated thermal areas that were recently mapped using high-resolution visible...

What do the subsurface fluid pathways look like for all of the hot springs and geysers scattered throughout Yellowstone?  A new set of data from an...