BOSTON - An earthquake felt in Boston, Massachusetts today was centered off York Harbor, Maine according to the United States Geological Survey. It was also felt in New Hampshire and Rhode Island, a USGS map showed.

Several people felt an earthquake in Massachusetts, New Hampshire, Maine, and Rhode Island Monday. Professor John Ebel, a senior research scientist with the Weston Observatory of Boston College, spoke to WBZ-TV's Paula Ebben and Terry Eliasen about it.

Monday’s incident marked the strongest earthquake in the northeast U.S. since last year when a 4.8-magnitude earthquake hit New Jersey in April — the strongest to hit the region in more than a decade, according to NBC News. There is currently no tsunami threat in New England, according to the U.S. Tsunami Warning Center.