Caldera Chronicles

Caldera Chronicles is a weekly article written by U.S. Geological Survey Yellowstone Volcano Observatory scientists and colleagues.

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Filter Total Items: 218
Date published: June 6, 2013

Repeating earthquakes suggest volcanic and tectonic origins of Yellowstone seismic swarms (2013)

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 and Range Province and therefore experiences tectonic strain associated with slow spreading of the earth's crust. 

Date published: March 20, 2013

Sloshing Detected in Yellowstone Lake Helps to Locate Magma Storage Region (2013)

Several years ago, using sensitive new monitoring equipment located in shallow boreholes, scientific staff from UNAVCO, a member institution of the Yellowstone Volcano Observatory (YVO), detected an odd rhythmic signal near Yellowstone Lake.

Date published: February 19, 2013

Gases in Brimstone Basin Indicate Heated Pasts (2013)

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 southeast shore of Yellowstone Lake.

Date published: June 8, 2012

Taking the Temperature of Yellowstone from Space (2012)

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 internal heat) that may take place over months, or years?

Date published: January 10, 2012

Tiny Bubbles in the Seismic Noise

USGS scientist Phil Dawson and colleagues have applied a novel research approach to voice recognition software. In their January 2012 paper, published in Geophysical Research Letters, they utilize this software to discover that background seismic activity in geyser basins can be intimately linked to daily cycles of...

Date published: October 1, 2011

A Gassy Link to Past Earthquake Swarm

Over the past three years we've witnessed two large earthquake swarms at Yellowstone (2010 and 2009). Recent history tells us that these earthquake swarms are common, but we would like to know how frequently they have occurred in the more distant past. USGS researcher Bill Evans may have found an answer.

Date published: January 4, 2011

Research Published on 2008-09 Swarm and 2004-10 Deformation

University of Utah researchers recently published two new articles in the journal Geophysical Research Letters that emphasize the active nature of the Yellowstone volcanic and hydrothermal system.

Date published: July 1, 2010

New technologies help characterize hydrothermal activity at Yellowstone

Yellowstone National Park geologists Cheryl Jaworowski and Henry Heasler published a paper with two university colleagues to illustrate how two exciting new technologies can be used to characterize hydrothermal activity at Yellowstone National Park.

Date published: April 6, 2010

Madison Plateau 2010 Earthquake Swarm Summary

This swarm is now the second largest recorded swarm at Yellowstone. It was longer (in time) and included more earthquakes than last year's swarm beneath Yellowstone Lake (December '08/January '09).

Date published: January 8, 2009

Yellowstone Lake Earthquake Swarm Summary

Seismic activity at Yellowstone Lake in Yellowstone National Park increased in late December 2008. As of January 8, 2009, the seismic activity has markedly decreased. 

Date published: November 9, 2007

Recent Ups and Downs of the Yellowstone Caldera

The November 9, 2007 issue of Science Magazine features an article, Accelerated uplift and magmatic intrusion of the Yellowstone Caldera, 2004 to 2006, by YVO scientists from the University of Utah and USGS.

Date published: March 15, 2006

Satellite Technologies Detect Uplift in the Yellowstone Caldera

Yellowstone and other caldera systems are well-known for their continual ups and downs.