Political and legal disputes in Maine that delayed construction of the New England Clean Energy Connect transmission line will add more than $500 million to Massachusetts ratepayers' bills, Bay State regulators said Monday.

A North Shore resident told Boston 25 News that the earthquake caused their home to “rattle, shake, and vibrate.”

A magnitude 3.8 earthquake struck off the coast of New England mid-Monday morning, sending tremors across the region. The United States Geological Survey confirmed the quake and said it hit offshore at 10:22 a.m. about 8 miles east of Portsmouth, New Hampshire, and about 6 miles southeast of York Harbor, Maine.

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.The earthquake took place at about 10:22 a.

Communities from Maine to Massachusetts felt a 3.8 magnitude earthquake rattle across the ground Monday morning.

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 Ware, Massachusetts, resident said she was home and her whole house was shaking for about 10 seconds from what she at first believed was an 18-wheeler coming down Route 9.

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.

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.

A 3.8 magnitude earthquake was reported in the area of York, ME Monday morning and many in western Massachusetts claimed they felt it as well.

A magnitude 3.8 earthquake shook parts of New England early Monday morning, striking approximately 7 miles southeast of York Harbor, Maine. According to the U.S. Geological Survey (USGS), the quake hit at a depth of roughly 8 miles, rattling the region from Boston to Portland, Maine.