Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from David Shelly, seismologist with ...

What will happen to Yellowstone once its rhyolite magma system shuts down? To understand the future, geologists look to the past — in this case, to Yellowstone Caldera’s older but ...

With all the talk of the current Yellowstone earthquake swarm, I thought it would worth it to write a post on the the structure and caldera – and why we get earthquake swarms that are ...

Scientists are tracking changes at the giant supervolcano that lies under Yellowstone National Park, but they say there's no need to worry at the moment. “The western part of the Yellowstone ...

Magma reservoirs beneath volcanic systems like Yellowstone are not simply large tanks of molten rock, but rather are dynamic mixes of melt and crystals that can change drastically over time.

The Yellowstone caldera, a giant crater caused by a previous eruption, measures 40 miles by 25 miles and sits in the northwest corner of Wyoming, in Yellowstone National Park.

Based on these data, Farrell and others (2014) have modeled a large, shallow zones of lower seismic velocity that they interpret as the magmatic system beneath the Yellowstone Caldera (see above).

They found four pockets together contain more liquid magma than was present during large, caldera-forming eruptions at Yellowstone in the past (one 2.8 million years ago, one 1.3 million years ago ...

Yellowstone hasn't had a major eruption for hundreds of thousands of years, but it's still very much an active system. This newly discovered cap, which is 2.6 miles (3.8 kilometers) below the ...