USGS Volcano Hazards Program Volcano Update


YVO update page and observatory web site


During the month of August 2012, the University of Utah reports 57 earthquakes were located in the Yellowstone National Park region. The largest was a magnitude 3.2 event on August 6 at 11:07 PM MDT, located about 6.3 miles north of West Yellowstone, MT. A swarm of 15 earthquakes occurred ~8 miles North of Old Faithful, YNP.

Yellowstone earthquake activity remains at a relatively low background level.

Slow subsidence of the caldera, which began in early 2010, continues. Current deformation patterns at Yellowstone are well within historical norms.

Please see: http://www.uusatrg.utah.edu/ts_ysrp.html for a map of GPS stations in the Yellowstone vicinity. For a graph of daily GPS positions at White Lake, within the Yellowstone caldera, please see: http://pbo.unavco.org/station/overview/WLWY

Update in Common Alerting Protocol (CAP) format