An earthquake with a preliminary magnitude of 5.9 struck Tuesday afternoon near Washington, D.C., the U.S. Geological Survey said.
The epicenter was in Mineral, Virginia. The quake was four miles deep, according to the USGS. Did you feel it? Send CNN an iReport.
To get complete coverage and all the latest updates, click on CNN's main story here. View a CNN Open Story about the quake. CNN Open Story combines iReports with reports from CNNers across the globe on a map and timeline.
Update 3:36 p.m. ET: Terminal A at Washington Reagan National Airport has been evacuated because of an odor of gas, airport spokeswoman Courtney Mickalonis said. Initial sweeps of the building showed no major damage from the earthquake.
Light structural damage has been reported in Culpepper and Orange counties in Virginia, said Laura Southard of the state Emergency Operations Center. She said there have been no reports of injuries in Virginia.
Update 3:28 p.m. ET: The White House and adjacent buildings evacuated as a precaution following the earthquake have been given the all-clear, the U.S. Secret Service said. The FBI and Justice Department have also reopened evacuated buildings.
Update 3:25 p.m. ET: East Coast residents should be prepared to feel aftershocks from Tuesday's earthquake, a U.S. Geological Survey official said.
Update 3:22 p.m. ET: The North Anna nuclear power plant, located 20 miles from the epicenter, is shut down and in a safe condition, a company official and the Louisa County public information office report. There has been no release of nuclear material, Louisa County spokeswoman Amanda Reidelbach said.
Update 3:04 p.m. ET: All national monuments and parks in Washington are "stable but closed" following Tuesday's earthquake, a United States Park Police spokesman Sgt. David Schlosser said. A couple of minor injuries and some minor structural damage have been reported in Washington, following Tuesday's earthquake, according to Schlosser.
Part of the central tower of the National Cathedral, the highest point in Washington, was damaged, according to spokesman Richard Weinberg. "It looks like three of the pinnacles have broken off the central tower," Weinberg told CNN.
Update 3:02 p.m. ET: Amtrak is reporting service disruptions between Washington and Baltimore because of the earthquake, the company reported on Twitter.
Aftershocks are a concern, U.S. Geological Survey seismologist Lucy Jones told CNN. "People should be expecting (them), especially over the next hour or two," she said.
The quake was felt in Philadelphia, Pennsylvania; New York City and on Martha's Vineyard, Massachusetts, where President Barack Obama is vacationing. It's unknown if the president felt the quake.
The Pentagon has been evacuated, CNN's Barbara Starr reports. "When the building began shaking rather violently, hundreds of people began streaming out," she said, because many people thought that the building was under attack. Starr was standing in the Pentagon's press office when the roof started to shake.
Cell phone service has been disrupted in New York City, CNN learned within minutes of the quake.
Updated 2:47 p.m. ET: A "considerable amount" of water from a water pipe has flooded two corridors of the Pentagon, according to an announcement in the building. People who work in those areas are being asked to stay in their offices while workers try to repair the damage.
The National Cathedral in Washington is damaged, CNN has confirmed.
And Dominion Generation, which operates the North Anna nuclear power station in central Virginia a few miles from the epicenter of the earthquake, is trying to reach operational staff at the plant, according to a company spokesman. Landlines to the plant appear to be down.
Shortly after the quake struck, traders in the New York Stock Exchange also felt the quake and shouted to each other, "Keep trading!" CNN's business correspondent Alison Kosik reported from the floor at 2:20 p.m. E.T.
Twitter traffic suggests the quake was felt all over the East Coast.
In Philadelphia, HunterPence3 tweeted, "Wow Earthquake just shook the entire locker room!"
In Cleveland, "tribeinsider" wrote "I'm no expert but i think we just had an earthquake here."
And even in Toronto, Canada, tweets said that the shaking could be felt for minutes.
Pete Krech, who works at a business in Fredericksburg, Virginia, likened the sensation to being on a jolting amusement ride. "I was receiving a supply truck," said Krech, store manager at Mattress Warehouse of Fredericksburg, south of Washington. "I felt a vibration under my feet."
Brendan Wein, a sales representative at Hoffman Nursery in Roxboro, North Carolina, said he thought there was a helicopter flying above his work building.Â "I was literally shaking in my chair," he said.
CNN iReporter Jeff Yapalater said he was in his backyard in New York's Long Island when the earthquake hit. "Suddenly I felt this light swaying of the Earth. I'd never felt that before, so I thought maybe I was experiencing vertigo for a moment, and it lasted maybe 30 seconds ... We're feeling this really far away!" he wrote.
get over yourself, if it's not a 6.0 or greater, don't report it.
A 6.0 with a DEPTH of only 4 miles, YES! REPORT IT PLEASE.
My sister lives in Norfolk, Va......she was driving in her car at the time but didn't feel a thing..although her daughter felt it at her school.
Wow seriously people. On the west coast a 5.9 is local news and it might make the meteorology report on the national broadcast. Pull yourselves to gather! P.S. our coastal winter storms have hurricane force winds but are never named and nobody tracks them or notices them but the locals either.
Totally agree!! The media is East Coast obsessed ðŸ™‚
DUH! The fact that it never happens here is WHY it's news!
5.8 with an extreme shallow DEPTH of only 3.7 miles ðŸ˜‰
you are an idiot
This is an obscene amount of comments.
Earthquake did not happen. It's a liberal media scare!! Al Gore is set to announce the end of the world is happening sooner than originally predicted. Christianne sent an email with the false "scientific" explanation. Rumor is that Clinton, Edwards, and Schwarznegger were in the area at the time of the quake. Fox news is hacking my voicemail!!!
In Maine I FELT THE EARTH MOVE UNDER MY FEET, I FELT THE SKY .....
Felt it in Charlotte, NC!
"It is unknown if the president felt the quake". LOL
I thought Perry had a large prayer meeting in Texas the first of this month to pray for the country and rain for Texas....Seems those people did not pray right...LOL...LOL..and there was a 5.3 in Co yesterday but not this much excitment...sheep run sheep run
Didn't feel it here in Raleigh but lived out west it takes a bit more for me to pay attention. East Coast has a major fault line and the soil composition allows earthquake waves to travel far which is why so many so far away felt the tremors.
OMG! Did you see those fifty bricks that they reported that fell in Brooklyn. For sure a no news day.
People are losing their homes, hungry and ill in this Country and this is the kind of stuff they make a major news story out of. Ridiculous!
Anne – Are you as sure as you sound? And it's not aftershocks but the actual quake we're talking about feeling. I am in Pittsburgh, and according to my cell phone records, I had felt shaking, wondered what happened, talked to colleagues, walked down four flights of stairs, and talked to more colleagues by 1:56 (2 or 3 minutes at least). USGS says the quake happened at 1:51. Are you telling me I felt some OTHER completely unprecedented shaking and not the quake???
..either that or plate tectonics. but no you're probably right.