MAINE -- The reports are being updated, but there's no doubt about it.
Maine's Lake Arrowhead was the epicenter of an earthquake Tuesday evening.
The U.S. Geological Survey revised its report of Tuesday's earthquake to magnitude 4.0, down from a preliminary magnitude of 4.6. The epicenter was pinpointed 4 miles west-southwest of Hollis Center, Maine, at a shallow depth of 4.2 miles.
Despite the downgrade, the quake was felt as far away as Boston, Massachusetts; even Albany, New York, and even Waterbury, Connecticut, according to the Geological Survey.
"My entire house shook for 3 to 4 seconds. It felt like it was about to collapse," a viewer from Everett, Massachusetts, wrote to CNN affiliate WCVB in Boston.
"I live in Brockton (Massachusetts) and we just felt EVERYTHING shake here in Brockton," another viewer told his station.
Viewer Phillip Smith in Gorham, Maine, told CNN affiliate WCSH he felt a "Loud bang and 10 seconds of shaking ... scared us in Gorham. We must have qualified out here for the Guinness book of records: 10,000 homeowners at the same time run down to their basements to check if their furnaces have blown up."
The governor of Massachusetts said on Twitter that no harm was done.