A magnitude 4.1 quake centered near Dover, Delaware shook the East Coast on Thursday, and was felt all the way from NY to Washington, DC, according to the USGS.
BREAKING: @USGS revises DE quake again down to 4.1 Magnitude.
There were no immediate reports of damage. The USGS initially upgraded the quake to a magnitude 5.1, but moved it back down to a 4.4. Keep checking abc7NY for the latest on this developing story.
The U.S. Geological Service reported intensity levels - a different measurement than magnitude - ranging from 3 (weak) to 5 (moderate) throughout Delaware.
Twitter users, including History Professor Kevin Kruse, also feeling the quake in Princeton. However, in DE, the quake jolted downtown Dover, sending lawmakers and workers in the statehouse outdoors to see what happened.
"It felt like I was going up and down and the building was going up and down", he said.
John Bellini, a geophysicist USGS's natural disaster information centre in Colorado, said any damage would be limited. It was later downgraded again to 4.1magnitude. It was hard to immediately predict if there would be aftershocks, she said.
In Baltimore, the jolt was strong enough to send some people streaming out of buildings and into the streets.
SSgt Aaron Jenne with Dover Air Force Base Public Affairs said he and others weren't sure what it was when it happened, but everyone is thankful that it wasn't worse and for it being so close there was no damage. Carberry, who is from the West Coast, said she told co-workers, "I'm pretty sure this is an quake".
We have a small favor to ask of you.
That quake, which occurred on August 23, forced the shutdown of the Washington Monument due to damage.