During June 2015, the University of Utah Seismograph Stations, responsible for the operation and analysis of the Yellowstone Seismic Network, reports 82 earthquakes were located in the Yellowstone National Park (YNP) region. The largest event was a small earthquake of magnitude 2.6 on June 21, at 04:40 PM MDT, located about 13 miles north northeast of Old Faithful, WY.
June seismicity included an earthquake swarm occurring on June 13 – 14th, about 6 miles southwest from West Thumb, WY, accounting for 16 earthquakes (ranging in magnitude from -0.1 to 2.4). The largest swarm event was a small earthquake of magnitude 2.4 on June 14, at 01:06 AM MDT.
Yellowstone earthquake activity in June remains at low background levels.
GPS stations in Yellowstone continue to show little or no ground deformation. See for example:
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.
02/07/2015. Yellowstone, Etats-Unis :
Source : YVO
Photos : rcn.montana.edu.