Residents in North Routt County are still trying to figure out what caused some homes and a fire station to rattle from the Clark area all the way to the shores of Steamboat Lake on Thursday morning.
Some residents wondered whether it was a sonic boom, an earthquake, or an avalanche.
But with no offical reports of an earthquake made in the area that day, the source of the boom appears to remain a mystery.
Residents started to try to solve the mystery when North Routt Rumors, a local news source in the area, asked its Facebook fans whether anyone else had experienced what felt like a "roof sliding" between 9 a.m. and 10 a.m. Thursday.
Comment: UPDATE: Wed, 17 Jan. 2018 (18.15 CET)
USGS has registered this event as a M2.0 earthquake with the epicenter at New Haven, just north of Detroit in Michigan. The American Meteor Society (AMS) has received almost 400 reports of the event. The flashing light and loud boom felt across Michigan and seen as far away as New York City and parts of Canada on Tuesday night was a meteoroid entering the atmosphere, according to NASA.
A post on the NASA Meteor Watch Facebook page, said the meteoroid traveled northwest from the Brighton area to the Howell area, citing the American Meteor Society's website. The 1 a.m. post read:
UPDATE: Sat, 20th Jan. 2018
The Daily Mail reports meteorite hunters have found fragments: