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.
Yesterday, the USGS issued a press release announcing that the swarm of earthquakes has stopped for now and may have ceased entirely.
"Changes in the alert level are announced through the Yellowstone Volcano Observatory Web site", reports YVO Scientist-in-Charge, Dr. Jake Lowenstern. "If an evacuation order were necessary, it would be handled through Yellowstone National Park and neighboring communities.
YVO is a cooperative project of USGS, the University of Utah, and Yellowstone National Park. Under the Stafford Act, the USGS has the Federal responsibility to issue warnings of potential volcanic disasters.
For a podcast interview with USGS scientists on the recent earthquakes at Yellowstone National Park, listen to Episode 80 of CoreCast at http://www.usgs.gov/corecast/.