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.

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.

According to the U.S. Geological Survey, the 3.8-magnitude earthquake southeast of York Harbor, Maine, could be felt in at least five states.

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. The earthquake with a magnitude of 3.8 happened at 10:22 a.m. It was initially reported as a magnitude of 4.1 and then 3.9.

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.

In South Portland, Katie Mauro's two cats seemed ... usually isn't mistaken for anything. The largest earthquake recorded in Maine was a magnitude 5.7 near the Canadian border in 1904.

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.

It’s been a very busy week underground in Maine, as there was an aftershock Wednesday morning from the larger earthquake that occurred Monday.

Another small earthquake was reported off the coast of York Harbor early Wednesday morning. The U.S. Geological Survey says the magnitude 2.0 quake was about 5.5 miles southeast of York Harbor in almost the exact same spot as a magnitude 3.

MAP: York Harbor, Maine. We haven’t seen an earthquake cause moderate damage since World War 2, but it’s still important to be aware of your surroundings if you feel shaking.

But for busy people, here’s a summary of things you should know about what to do before, during and after an earthquake in Japan. If you’re on public transport: Follow the same guidelines ...