Caldera Chronicles

In high school physics, we are taught that gravity is a constant—9.8 meters per second squared is the gravitational acceleration on Earth, and it is...

Yellowstone's thermal areas are the surface expression of the deeper magmatic system, and they are always changing.  Recently, we have discovered...

We've heard many statements that Yellowstone is overdue -- that it has a major eruption every 600,000 years on average, and since the last eruption...

There are over 10,000 thermal features scattered throughout Yellowstone National Park, and many are in remote locations. Attempting to make a more...

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

What does a magma chamber look like? At first thought, many of us would imagine a large cavern in the crust filled with molten rock. While this has...

It has been well documented that the interaction of ocean waves and the seabed causes seismic shaking that is recorded by seismometers around the...

One of the most distinguished researchers and staunchest supporters of Yellowstone was Don White (1914-2002) of the U.S. Geological Survey (USGS). Don...

Yellowstone National Park has one of the highest concentrations of continental geothermal activity on Earth, and includes an extraordinary collection...

Idaho is home to several young volcanoes, including the Craters of the Moon, Wapi, Kings Bowl, North and South Robbers, Cerro Grande, Hells Half Acre...

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

Just a few miles north of Yellowstone National Park, discharge from a sizable hydrothermal feature, LaDuke Hot Springs, mixes with the Yellowstone...

In June of 2017, an earthquake swarm began beneath the western edge of Yellowstone National Park, just east of Hebgen Lake. This swarm proved to be...

When you think of a lake bed, what comes to mind? Squishy bottom with some grasses, rocks, and sunken logs?

YVO has noted, with some amusement, tabloid headlines about various diabolical schemes to trigger an eruption of Yellowstone by nuking the caldera. If...

Yellowstone is an incredibly dynamic place—there are frequent earthquakes, geysers erupt and go dormant, and the ground moves up and down. As seasoned...

"E.C. Waters, president of the Yellowstone Lake Boat Company, having rendered himself obnoxious during the season of 1907, is...debarred from the park...

Have you ever witnessed an Old Faithful Geyser eruption and wondered how it works? What hidden underground environment causes thousands of gallons of...

Last week, the USGS released an updated threat assessment for US volcanoes. The first assessment was published in 2005. The 2018 update refined the...

Have you ever played a game of telephone? Where one person says something to their neighbor, and the message is passed from person to person? The...