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Date published: September 1, 2010

Are Wolves Saving Yellowstone’s Aspen Trees from Elk?

LARAMIE, Wy. — Previous research has claimed that the reintroduction of wolves to Yellowstone National Park in 1995 is helping restore quaking aspen in risky areas where wolves prowl. But apparently elk hungry for winter food had a different idea.

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: March 29, 2010

Elk Brucellosis Infection may be increasing in the Greater Yellowstone Ecosystem

Brucellosis, a bacterial infection of cattle, elk and bison, appears to be increasing in several elk populations in northwestern Wyoming, according to a U.S. Geological Survey study recently released in the publication Ecological Applications.

Date published: January 8, 2009

No Yellowstone Evacuation Warning Issued

The USGS is not affiliated with a web site that recommends evacuation of Yellowstone National Park and bears the USGS logo. The USGS is not recommending the evacuation of the Park.
Officials at the USGS are working through the appropriate legal channels to have both the warning and logo removed from the web site.

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: January 7, 2009

Swarm of Earthquake Activity Over For Now at Yellowstone National Park

The notable swarm of earthquakes that started December 26, 2008, beneath Yellowstone Lake in Yellowstone National Park has stopped for now and may have ceased entirely.
This sequence of more than 500 seismic events was most intense on December 27, 2008. The sequence included sixteen events of magnitude 3 to 3.9 and approximately 70 of magnitude 2 to 3 (as of Sunday afternoon, Jan. 4, 2009).

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: May 3, 2007

Volcano Watch — New report describes Yellowstone's volcanic and hydrothermal hazards

A major goal of the Yellowstone Volcano Observatory, when it was created in 2001, was a first-ever assessment of the hazards of Yellowstone's massive volcanic and hydrothermal system. Two months ago, scientists completed a preliminary hazard report.

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.

Date published: June 13, 2005

Truth, fiction and everything in between at Yellowstone

The June 2005 issue of Geotimes magazine includes an article by YVO Scientist-in-Charge Jake Lowenstern. The article, Truth, fiction and everything in between at Yellowstone, presents Lowenstern's views on public and media interest in Yellowstone and its volcanic potential.

Date published: June 28, 2004

Tracking Changes in Yellowstone's Restless Volcanic System

Satellite-based surveying techniques (InSAR) allow scientists to view changes to the ground surface at Yellowstone. For more information see the Tracking Changes in Yellowstone's Restless Volcanic System fact sheet.