Yellowstone Volcano Observatory

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The Yellowstone Volcano Observatory (YVO) is a consortium of nine state and federal agencies who provide timely monitoring and hazard assessment of volcanic, hydrothermal, and earthquake activity in the Yellowstone Plateau region. The USGS arm of YVO is also responsible for monitoring and reporting on volcanic activity in the intermountain west U.S. states.

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News

Date published: May 25, 2020

Aftershocks? Swarm? What is the difference, and what do they mean?

In Yellowstone, we often talk about earthquake swarms.  But especially in recent weeks, we’ve also discussed aftershock sequences.  What is the difference?  And what to these different types of seismic events mean?

Date published: May 4, 2020

New geochemical tool reveals origin of Yellowstone's deep nitrogen

In the air we breathe, Oxygen plays an obvious and important role, but it is not the most abundant gas in the atmosphere. That honor belongs to nitrogen. But where did this nitrogen come from? And how much nitrogen is there deep within the Earth? It turns out that measurements at Yellowstone are helping to address these questions and others!

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