Experts say that while it has been quiet after Monday's quake, the risk of one or more aftershocks is not out of the question.

YORK HARBOR, Maine — A second earthquake in just three days was detected off the coast of New England early Wednesday morning. The United States Geological Survey confirmed a 2.0 magnitude earthquake centered southeast of York Harbor, Maine, just north of Portsmouth, New Hampshire, around 3:15 a.m.

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.

The quake, centered about six miles southeast of York Harbor, Maine, at 10:22 a.m. was reportedly felt hundreds of miles away across New England and as far as Pennsylvania.

The ground violently shook in a video taken outside the iconic Nubble Lighthouse in York, Maine, amid a magnitude 3.8 earthquake that struck off the coast Monday morning and could be felt across New England.

An earthquake centered off the coast of New England Monday morning was felt in the Boston area, Maine and Pennsylvania.

The largest known New England earthquakes were a 6.5-magnitude in 1638 centered in Vermont or New Hampshire, and a 5.8-magnitude centered offshore from Cape Ann in 1755, which resulted in severe damage to the Boston waterfront.

A 3.8-magnitude earthquake centered near the Maine coast rattled houses in northern New England on Monday and was felt by surprised residents of states hundreds of miles away.

An earthquake​ just off Maine today was felt in Boston and into Connecticut, Vermont and New Hampshire, according to a "shake map."

Another earthquake was detected off the coast of New England early Wednesday morning, the U.S. Geological Survey reported. The 2.0-magnitude earthquake struck at about 3:15 a.m. and was centered less than 10 miles east of Portsmouth.

The event proved to be quite dramatic for the colonial settlers, causing dishes to rattle, doors to shake, and buildings to tremble. The earthquake's impact was so startling that field workers abandoned their tools and fled in panic across the countryside.