Caldera Chronicles

Welcome to the inaugural issue of "Yellowstone Caldera Chronicles," a new weekly column of the Yellowstone Volcano Observatory (YVO). Each Monday on...

When earthquake swarms happen at Yellowstone, we receive a lot of questions about whether the volcano is headed toward eruption. The swarm in June...

Most models of geyser eruptions start with a simple assumption: eruptions occur as liquid water boils to steam. While that is largely true, if the...

USGS scientists often determine the age of volcanic rocks with dating techniques that involve radioactive decay of elements like uranium and argon.

How do we know what's beneath Yellowstone, and how can we image the shallow magma?

The topic of Yellowstone supereruptions (ones producing greater than one thousand cubic kilometers of volcanic debris) generates much interest, but...

Yellowstone is located in a region of the United States where both volcanic and tectonic processes occur. Yellowstone is also at the edge of the Basin...

Several years ago, using sensitive new monitoring equipment located in shallow boreholes, scientific staff from UNAVCO, a member institution of the...

In Fall of 2012, Deborah Bergfeld (USGS) and colleagues published a paper in the journal Chemical Geology on an unusual acid-altered region along the...

We all know Yellowstone is hot… but how hot? And how can we detect park- or basin-wide changes in geothermal areas (regions that let off Earth's...