Yellowstone Volcano Observatory


Filter Total Items: 247
Date published: April 2, 2018

Exploring the depths of Yellowstone Lake

Yellowstone Lake is huge. It is the largest high-altitude (above 2130 m, or 7000 ft) freshwater lake in North America, covering about 341 square kilometers (about 130 square miles). That's about 100 times the size of New York City's Central Park!

Date published: March 26, 2018

Partners in geologic hazards—YVO and the Wyoming State Geological Survey

By now, readers of Yellowstone Caldera Chronicles know that the Yellowstone Volcano Observatory (YVO) is a consortium of 8 different agencies.

Date published: March 19, 2018

A tribute to an unsung hero of Yellowstone—Dave Drobeck (1960–2018)

This week, Yellowstone Caldera Chronicles would like to acknowledge one of the unsung heroes of the long-term effort to monitor activity in the Yellowstone region.

Date published: March 12, 2018

Yellowstone National Park—specialists in monitoring and preserving hydrothermal features

In the early nineteenth century, European settlers began exploring the lands of northwestern Wyoming—lands that had been known to Native Americans for millennia.

Date published: March 5, 2018

Taking Yellowstone's Temperature…From Space!

A lot of heat is released from Earth's surface at Yellowstone. The evidence of this heat flow includes thermal features like hot springs, geysers, mud pots, and fumaroles. 

Date published: February 26, 2018

Yellowstone's dynamic Norris Geyser Basin

Ever wonder what makes the Norris Geyser Basin in Yellowstone National Park so special? It turns out that the basin not only boasts the hottest temperatures and largest changes in hydrothermal (hot water) activity in the National Park, but is also home to Steamboat Geyser, which erupts to unmatched heights of up to 100 m (328 ft).

Date published: February 19, 2018

Yellowstone's current seismic swarm—what does it mean?

Over the past several days, an earthquake swarm has been ongoing at Yellowstone. Before you read any more, keep in mind that swarms like this account for more than 50% of the seismic activity at Yellowstone, and no volcanic activity has occurred from any past such events.

Date published: February 12, 2018

A recent "hiccup" in deformation of the Norris Geyser Basin

If you've been paying attention to monitoring data from Yellowstone or reading the Yellowstone Volcano Observatory (YVO) monthly updates, you might have noticed a recent change in how the ground around the Norris Geyser Basin is moving.

Date published: February 5, 2018

Yellowstone is under strain—and it's something we can measure!

We all know what it is like to experience strain. The pressures of everyday life can leave you feeling contorted and stretched. It turns out, volcanoes are no different—they experience strain as well, and measuring that strain can help scientists understand a volcano's activity. Unlike you, when a volcano experiences strain it really does contort or stretch.

Date published: January 29, 2018

Yellowstone gas emissions—an extreme chemistry playset!

If you've visited Yellowstone, you've probably noticed that some thermal areas have a distinctive smell. This is due to the gas that discharges from features such as geysers, mud pots, roiling pools and fumaroles.

Date published: January 22, 2018

A history of Yellowstone earthquakes

The Yellowstone region is one of the most seismically active areas in the United States, experiencing around 1,500 – 2,500 located earthquakes per year on average.

Date published: January 15, 2018

How do we know about the calderas in Yellowstone?

Have you ever wondered how Yellowstone Caldera was discovered, and how it was recognized as being the result of a massive volcanic eruption? In fact, the Yellowstone Plateau hosts three separate calderas, the youngest being the "Yellowstone Caldera".