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.

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).

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.

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.

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. 

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).

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.

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.

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

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.

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.