Yellowstone Monthly Update issued Sep 2, 2014 11:04 Volcano Alert Level NORMAL - Aviation Color Code GREEN

Seismicity

During August 2014, the University of Utah Seismograph Stations, responsible for the operation and analysis of the Yellowstone Seismic Network, reports 207 earthquakes were located in the Yellowstone National Park (YNP) region. The largest event was a small earthquake of magnitude 2.2 on August 6, at 5:55 AM MDT, located about 15 miles southwest of Mammoth, YNP. The August earthquake sequences are described below.

1) The largest series of earthquakes (74 ranging in magnitude from -0.9 to 2.0) occurred August 18 – 21, just outside of YNP, about 6 miles north of West …

Source: Volcanoes

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