Caldera Chronicles

Investigations into the water chemistry of Yellowstone's geysers, hot springs, mud pots, and streams and rivers have been conducted by the U.S...

The arrival of volcanoes in that area is geologically recent, however—volcanism associated with Yellowstone has migrated over 400 miles across...

Looking back at early accounts of Yellowstone allows us to appreciate how our understanding has changed over time.

Last week, the Yellowstone Volcano Observatory 2017 Annual Report was published online.

The carbon dioxide (CO2) emitted from the Yellowstone magmatic-hydrothermal system has a number of characteristics that make it an important gas to...

Yellowstone, like many regions with hydrothermal activity, often exhibits earthquake swarms. But how do we define an earthquake swarm and distinguish...

Yellowstone is one of the best instrumented volcanoes in the world. There are several dozen GPS stations, seismometers, temperature sensors, river...

Three YVO scientist communicators joined up with a university social scientist and earthquake-science communicator to offer a short course on...

Multiple hydrothermal breccia pipes are exposed along the northern and western shores of Yellowstone Lake and provide clues into the shallow roots of...

The backbone of Yellowstone's ground-based monitoring network consists of seismic stations, which detect earthquakes, and GPS (Global Positioning...

Let's ditch the overused, misrepresentative, and misapplied "supervolcano" term. Instead, let's call them "caldera systems."

YVO gets a lot of questions about whether Yellowstone, or another caldera system, will end all life on Earth. The answer is—NO, a large explosive...

"It's been two years now since I stepped away from YVO, and I wanted to take this time to reflect a bit on my experiences with the observatory and as...

Geoscientists have never observed an active magma reservoir firsthand because magmas are stored inaccessibly deep underground. However, crystals are...

Yellowstone National park hosts more than 10,000 hydrothermal features including hot springs, geysers, fumaroles, and mud pots. But did you know that...

USGS and Yellowstone National Park scientists visited a newly discovered thermal site in the park. They mapped the extent of the area and took the...

Scientists who work at Yellowstone are interested in finding physical and chemical signals from the deep magmatic system, both to better understand...

What does cause an eruption at volcanoes like Yellowstone? To answer this question, we look at small crystals that formed in erupted volcanic rocks! 

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

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