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= Yellowstone National Park
= Caldera
Yellowstone Monthly Update
Wednesday, July 01, 2015 10:48 AM
 Current Volcano Alert Level: NORMAL
 Current Aviation Color Code: GREEN
 
YVO's Mission
The Yellowstone Volcano Observatory provides timely monitoring and hazard assessment of volcanic, hydrothermal, and earthquake activity in the Yellowstone Plateau region.

Features   (archive)
Quick Links

Five Things Most People Get Wrong About the Yellowstone Volcano
May 08, 2015
We can't help but notice the comments in social media, and even the ticklers and headlines in the newspapers and blogs. Sometimes, people spread misinformation even when they think they know the facts. This new article dispels five of the most common misunderstandings about Yellowstone.
Seismic research finds two magma storage regions beneath Yellowstone
April 23, 2015
Researchers at the University of Utah and their colleagues at the University of New Mexico and Caltech released a paper in the journal Science on their latest imaging of the crust beneath Yellowstone using seismic techniques. This is the first study to verify what has been long suspected..that magma exists beneath Yellowstone volcano throughout the extent of the Earth's crust, which is 43-km- (27-mi-) thick beneath Yellowstone. Read a summary of the study including further discussion of the implications. The original article can be found on the Science website.
Videos help make sense of seismic data and the history of geologic research at Yellowstone
October 21, 2014

YVO staff contributed to a new USGS video entitled: "An Illustrated Guide to Reading a Seismogram." This off-beat video provides a short, introductory lesson on how the seismic plots are generated and the potential sources for "signals" on a seismogram.

If you're looking for additional insight on Yellowstone geology, three video interviews were added in September. USGS Video Producer Steve Wessells conducted interviews with some of the key USGS scientists who unlocked the secrets to Yellowstone's volcanic and geothermal history. Bob Christiansen, Patrick Muffler and Bob Fournier reminisce about their early careers working at Yellowstone in the 1960s and 1970s.


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Frequently Asked Questions

Quick Facts
Location: Wyoming and Montana
Latitude: 44.615° N
Longitude: 110.6° W
Elevation: 2,805 (m) 9,203 (f)
Volcano type: Caldera
Composition: basalt to rhyolite
Most recent eruption: 70,000 years ago—lava, current—hydrothermal explosions