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Yellowstone Monthly Update

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avatar Yellowstone Monthly Update
April 03, 2010 04:24PM
During the month of March 2010, 66 earthquakes were located in the Yellowstone region. The largest event was a magnitude 2.7 on March 29th at 7:35 PM MDT, located about 8 miles northeast of Canyon Junction, YNP. No earthquake swarms were recorded during March and seismicity continues at background levels.

Ground Deformation Summary: Continuous GPS data show that uplift of the Yellowstone Caldera has slowed significantly. Uplift rates for YVO GPS stations are less than 2.5 cm per year. The WLWY station, located in the northeastern part of the caldera, underwent a total of ~23 cm of uplift between mid-2004 and mid-2009. Its record can be found at:
http://pboweb.unavco.org/shared/scripts/stations/?checkkey=WLWY&sec=timeseries_plots&timeseries=raw

The general uplift and subsidence of the Yellowstone caldera is of scientific importance and will continue to be monitored closely by YVO staff.

An article on the recent uplift episode at Yellowstone and discussion of long-term ground deformation at Yellowstone and elsewhere can be found at: http://volcanoes.usgs.gov/yvo/publications/2007/upsanddowns.php
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