During the month of May 2011, 105 earthquakes were located in the Yellowstone National Park region. The largest was a magnitude 3.2 event on may 7 at 10:32 PM MDT, located about 11 miles northeast of West Yellowstone, MT. A small swarm of 27 earthquakes was recorded on May 2-4, located about 6 miles northwest of West Yellowstone, MT, with magnitudes ranging from M -0.9 to M 1.6.
Earthquake activity continues at background levels. For a map of recent earthquakes, please see:
http://www.seis.utah.edu/req2webdir/recenteqs/Maps/Yellowstone.html
Ground Deformation Summary: The period of caldera uplift that began in 2004 ended over one year ago. Since then, the caldera has been subsiding, though seasonal deformation from ground water changes may temporarily mask the trend. 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://pboweb.unavco.org/shared/scripts/stations/?checkkey=WLWY&sec=timeseries_plots×eries=raw.
The Moon is Waning Crescent (18% of Full)
Yellowstone Monthly Update issued Jun 1, 2011
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June 01, 2011 05:15PM |
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