U.S. Geological Survey
U.S. Geological Survey

A moderate earthquake occurred about 50 miles east-southeast of Thermopolis late Friday, according to the U.S. Geological Survey.

The 4.2 magnitude quake that occurred at 11:11 p.m. about 3.5 miles below the surface, was felt mostly in the Bighorn basin, according to the U.S.G.S.

There were no reports of fatalities or significant damage, the agency added.

As of 11:30 a.m. Saturday, the U.S.G.S. received 55 reports of shaking.

Of those, 20 were from Thermopolis, 10 were from Greybull, six were from Ten Sleep, and four each from Worland and Basin. The U.S.G.S. received two reports from Casper.

The reports from the farthest from the epicenter were from Bridger, Mont., and Fort Collins, Colo., according to the U.S.G.S.

The independent earthquake reporting site, Earthquake-Report.com, received comments from people in Lovell, Ten Sleep, Worland, Greybull, Shell and Cody.

These are some of them:

Lovell -- "Was seated quietly on a bed on the second story... Was also felt by other family on the first story. The house seemed to (sway) in response to movement from underneath, and, since we've no prior experience with earthquakes, it was somewhat shocking when it felt inherently different from the common experience of a heavy vehicle passing in front of the house."

Worland -- "I was sitting in a 26' travel trailer. The trailer began to rock and sway, I thought it was the wind at first. I checked outside and the wind was not blowing. The swaying lasted 15-20 seconds."

Greybull -- "It was only for maybe 2 seconds and at first I wasn't sure what I was feeling but my house shook. I looked at a lamp that I have and it was shaking and all of my animals freaked out."

Ten Sleep -- "Thought snow was sliding off the roof, then whole house shook 5-10 seconds. Confused the hell out of me and the dog..."

Shell -- "Two neighbors a few yards over the fence felt it and called us. We live at the base of the Big Horn Mts.We personally did not feel it."

Cody -- "I was sitting on the sofa and felt light vibrations. Little less than the clothes washer spinning out in the basement, I was on the ground level."

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