YELLOWSTONE VOLCANO OBSERVATORY MONTHLY UPDATE
Wednesday, April 1, 2015 12:40 PM MDT (Wednesday, April 1, 2015 18:40 UTC)
YELLOWSTONE VOLCANO (VNUM #325010)
44°25'48" N 110°40'12" W, Summit Elevation 9203 ft (2805 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN
Seismicity
During March 2015, the University of Utah Seismograph Stations, responsible for the operation and analysis of the Yellowstone Seismic Network, reports 56 earthquakes were located in the Yellowstone National Park (YNP) region. The largest event was a small earthquake of magnitude 2.2 on March 23, at 00:25 AM MST, located about 16 miles north northwest of Lake Village, WY.
No earthquake swarm activity was present during March. Yellowstone earthquake activity in March remains at low background levels.
Ground deformation
GPS stations in the caldera (and north of the caldera) exhibit minimal movement either up or down at this time. An example can be found at: http://www.unavco.org/instrumentation/networks/status/pbo/data/HVWY (click on Static Plots / Time Series)
The Yellowstone Volcano Observatory (YVO) provides long-term monitoring of volcanic and earthquake activity in the Yellowstone National Park region. Yellowstone is the site of the largest and most diverse collection of natural thermal features in the world and the first National Park. YVO is one of the five USGS Volcano Observatories that monitor volcanoes within the United States for science and public safety.