Yellowstone Saw 67 Earthquakes In February

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By Ellen Fike, Cowboy State Daily

Yellowstone National Park saw 67 earthquakes throughout the month of February, although most were small, with the strongest having a magnitude of 2.4.

The U.S. Geological Survey, in its monthly Yellowstone Volcano Observatory update published Monday, said many of the earthquakes seen during the month were part of a swarm of 20 with magnitudes between 0.3 and 2.3, recorded in the area of West Yellowstone, Montana, from Feb. 1-16.

The largest earthquake of the swarm occurred at 5:30 a.m. on Feb. 4 and was located one mile southwest of West Yellowstone.

Earthquake sequences like these are common and account for roughly 50% of the total seismicity in the Yellowstone region.

Of the 67 earthquakes that occurred last month, the strongest was a 2.4 magnitude located 13 miles of Pahaska Tepee that was recorded at 3:08 a.m. on Feb. 2.

Steamboat Geyser had two major water eruptions in the past month, on Feb. 3 and 21. This is typical of winter, when low groundwater levels seem to correlate with longer intervals between Steamboat’s eruptions.

The Yellowstone Volcano Observatory 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.

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