Caldera Chronicles

About 30 kilometers west of the Yellowstone National Park boundary, in Idaho, UNAVCO* field engineer Tom Lyman surveys the damage at GPS station P361...

We often talk about monitoring Yellowstone. To most people, this implies tracking earthquake activity over time, or how the ground moves up and down...

One of the most common questions asked of YVO is "when is the next big one?" This is an interesting question, given the multiple potential natural...

In about 500 BCE, Heraclitus of Ephesus declared "life is flux." Today, we know the saying better as, "the only constant is change." This is true of...

More often than not, unforeseen outcomes are bad news. Requiring a complex password is intended to make your password more secure. And it is – unless...

In a previous Yellowstone Caldera Chronicles article, we discussed using satellite thermal infrared remote sensing to study the thousands of thermal...

Many of Yellowstone National Park's most recognized and iconic water features are hot springs and geysers.

Over the past 8 months, Yellowstone Caldera Chronicles articles have explored many topics about Yellowstone, from the history of the Park to recent...

Norris Geyser Basin is one of the most dynamic geyser basins in Yellowstone National Park. It frequently experiences "disturbances" when thermal...

Are gas emissions at Yellowstone dangerous? You may ask this question while walking along the boardwalks of Yellowstone's geyser basins, where you'll...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's...

The thought of hydrothermal activity at Yellowstone conjures images of hot pools and spouting geysers, but water doesn't always have to appear at the...

If you could travel to Yellowstone 20,000 years ago, what would you see? Erupting geysers? Scenic thermal springs? Herds of bison and elk? No! In fact...

Yellowstone is one of the most dynamic places on Earth, with active volcanism, seismic swarms, strong earthquakes, episodic ground deformation of up...

In 1922, Dr. Thomas Jaggar, MIT professor and founder of the Hawaiian Volcano Observatory, took a horse-pack trip through Yellowstone. After the...

Yellowstone National Park's Norris Geyser Basin is a hydrothermal basin full of geysers and thermal pools that are constantly changing.

As you know the Yellowstone Volcano Observatory (YVO) is more than just one agency—it's a consortium of institutions that collaborate to monitor and...

The Yellowstone Volcano Observatory (YVO) is aptly named – the consortium of 8 organizations collaborates to study and monitor the active geologic...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's...

Steamboat Geyser in Norris Geyser Basin has been measured as the World's tallest geyser (70-120 meters; 230-294 feet).