The above information was posted today on nydailynews.com, and the picture below was taken this morning in Mammoth. The pictured bison were, apparently, unaffected by the quake. According to the nydailynews.com post, the University of Utah Seismograph Stations reported that the earthquake occurred at 6:34am just four miles northeast of the Norris Geyser basin and was felt 20 miles away in, both, West Yellowstone and Gardiner.
So, if you were in that area this morning and thought you felt a rumble, you probably weren’t imagining it!
(Photo via Yellowstone National Park Facebook page)