The southwest side of Yellowstone Lake, the largest body of water in Yellowstone National Park, is showing a significant surge in seismic activity.
According to the United States Geological Survey (USGS), Yellowstone experiences between 1,500 and 2,500 earthquakes a year, many of which occur in swarms. Most swarms are small, containing 10 to 20 earthquakes, and are short, lasting one to two days.
Today’s seismic activity is a bit abnormal as the U.S. Geological Survey says there have already been 93 earthquakes as of 4:00 pm Thursday and the number is on the rise, all occurring in the Yellowstone Lake area since Wednesday night. All earthquakes except seven had a magnitude of less than 2.5. None of them reached a magnitude of 3.0 points.
In the same area, 108 earthquakes have been recorded over the past 30 days, including today’s activity. This means that until today, only 15 earthquakes have been recorded in the area.