If you were anywhere along the east coast of the United States on Thursday at 4:47 p.m. Eastern time, you might have felt a slight tremor run through your body. No, it’s not just the winter chill setting in — it was a bona fide earthquake with a magnitude 4.4, which hit just 6.2 miles east of Dover, Delaware and 55 miles south of Philadelphia.
The United States Geological Survey (USGS) confirmed the earthquake in a tweet just two minutes after, at first overestimating the magnitude of the quake at 5.1. It revised its measurement to 4.4 shortly after.
On Twitter, people from Baltimore through New York city reported feeling the earth shake. “Anyone else feel their house shake?? Real rude for this earthquake to interrupt our Christmas decorating,” tweeted user karalessly from Delaware.
In New York City, user BeckaNoel tweeted that the quake lasted 5-7 seconds.