We're receiving numerous reports of an earthquake rocking the Mid-Atlantic region of the East Coast Thursday afternoon.
According to the USGS, the quake was upgraded to a 5.1 magnitude before later being downgraded to 4.4. It was centered around Dover, Delaware, around 50 miles southwest of Philadelphia and struck around 4:47 p.m. Eastern.
People as far west as Washington, D.C. and as far north as New York City are reporting feeling it, ABC 7 NY reports. Social media was flooded with chatter about the quake.
Significant earthquakes on the East Coast are rare. A 5.8 earthquake hit Virginia in 2001. Most quakes in America are west of the Rocky Mountains. However, because of the Atlantic coastal plain's sandy ground, tremors in the ground can be felt a long distance away on the East Coast.
USGS geophysicist Dale Grant called the earthquake "exceptionally rare" for that area, the Washington Post reports.
There have been no reports yet of injuries or damage. In other news, singer-songwriter Bette Midler is accusing Geraldo Rivera of sexual assault after his unsettling Twitter rant on Wednesday.