The US Geological Survey reported this afternoon that it had detected an earthquake in the town of Dracut, but later rescinded the report after realizing it was a quarry blast, state officials said.
The USGS alerted the Massachusetts Emergency Management Agency of a 2.2-magnitude earthquake in Dracut at about 2 p.m., but wrote back thirty minutes later to say it was blasting at a quarry, MEMA spokesman Peter Judge said.
The tremor was detected after a routine blast at Brox Industries on Methuen Street in Dracut, according to a spokesman at the neighboring quarry, New England Cement Block.
A message seeking comment from Brox Industries wasn’t immediately returned.Catalina Gaitan can be reached at firstname.lastname@example.org. Follow her on Twitter at @catalina_gaitan.