Shaking was felt as far north as New York City and as far south as Washington, D.C. from a preliminary magnitude 4.4 quake that struck just before 5 p.m. Thursday northeast of Dover, Delaware.
It was centered 3 miles (4.8 km) from Little Creek, Delaware, and was felt in Philadelphia in the neighboring state of Pennsylvania, some 57 miles (91 km) from the epicenter.
The quake hit at 4:47 p.m.
That quake, which occurred on August 23, forced the shutdown of the Washington Monument due to damage. It was later revised to a 4.1 magnitude quake, which is considered light and generally does not bring severe damage.
An quake was felt along the East Coast of the United States, including in the New York City area, on Thursday afternoon.More news: Florida Gators Rumors: Dan Mullen 'Targeted' to Be Gators' Next Coach
The station also writes that Paul Caruso, a geophysicist with the USGS, says there is potential for aftershocks.
Husam Albarmawi, a 30-year-old graduate student at the University of Maryland, rushed out of an apartment tower with his wife when they felt two separate jolts roughly 20 seconds apart in their 23rd-story apartment.
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"I turned around and one of my co-workers was coming down the hall with the big-eyes look", he said. She said there were no signs of damage at the base nor would there be any change in its operation.