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.¬† "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.
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What about Arlington Cemetery and the men on duty there at tomb of the unknown soldier? I bet they have a story to tell they have their quarters underground.
I was in a mini mart in Quantico, va and stuff started falling off the shelves.
felt in pikeville,ky all county offices closed, some damage to courthouse
I want my high Kolonic with vaseline
I didn't feel the tremor, but many people in my area, including several in my office, felt it. All I know is that around 1:55 ET, my phone blew up with calls and text messages about "the earthquake."
One friend from California said someone in her office started screaming and she (my friend) looked at her and said, "Really?! It's not a bad one!"
Didn't feel it here in central Maine. Can't believe people from New Hampshire and Toronto are saying they felt it. Thats incredible.
Too right... people are saying they felt it in Chicago and Kentucky. I live in Indiana and was taking a CPR class at the time with 10 other people and we felt nothing. I think some people are just saying they felt it just so they can be a part of it, kind of like alot of the people who voted for Obama. They just wanted to belong.
Contrary to popular belief, people several states away could not have felt the earthquake the instant it happened, nor several seconds afterwards. It takes time for aftershocks to travel, just as tsunamis do. You don't immediately start panicking because a tsunami was spotted 1000 miles away do you? No? Why not? Because it takes time for it to travel, and there are many factors that determine how strong the impact it. You could not, and did not, feel things swaying, rattling or see things falling off walls halfway across the country within seconds to minutes for a minor 5.9 quake.
Sorry, but a 5.9 can be as destructive as a 9.0 because of DEPTH, if you don't know well about this matters then get informed before talking about them ūüėČ
So where are ALL the Religious Freaks with their RIDICULOUS PREACHING, "Oh the End of Days is Upon Us...Oh, Jesus Christ, the lord and saviour is coming..." GIMME A DAMNED BREAK, Jesus Christ is coming and I am the Queen of England !! BUNCH OF RIGHT-WING RADICAL, RELIGIOUS FREAKS !!!!!
Matthew 24:4-7 And Jesus answered and said unto them, Take heed that no man deceive you.For many shall come in my name, saying, I am Christ; and shall deceive many. And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all these things must come to pass, but the end is not yet.For nation shall rise against nation, and kingdom against kingdom: and there shall be famines, and pestilences, and earthquakes, in divers places.
Everything that he spoke of is taking place as prophesied thousands of years before, call us what you want unbeliever, you are the one who will be looking stupid and helpless when the end comes. The Bible says no one knows the day or the hour that the son of man shall appear but oh yes it will happen one day!
That's because no one feels it.
Felt it in Toronto.
Just beating the nut cases to it. Earthquakes on the east coast!? OMG It must be the Earthquake Triggering Weapon (ETW). Ahhhhhhhhhh!
Funny you should mention that, there was a rumor that China had developed such a weapon....coincidence that it was so close to Washington DC.....perhaps....perhaps not.
Felt in Worcester Mass.
omg it was so scary never felt anything like that before in my life i live in dundalk and my walls and doors and windows and the floors were shaking bad it scared me so bad i didnt know what it was i didnt think we would have that here but i grabbed my daughter and ran outside