Click here for a list of those confirmed killed in the explosion.
Click here for a timeline of events
Click here for information about donations and funds set up to help the miners' families.
Click here for information about funerals for the fallen miners.
UPDATE 4:20 p.m. April 19
Memorial Service Set to Honor Miners of Upper Big Branch Mine Disaster
Gov. Joe Manchin and first lady Gayle Manchin host a public memorial service for Sunday, April 25.
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UPDATE 12:45 p.m. April 16
U.S. Senate Passes Upper Big Branch Resolution
Members of the U.S. Senate Thursday evening unanimously approved a resolution honoring the 29 miners who were killed in an April 5 explosion at the Upper Big Branch Mine in Raleigh County, according to a news release from Sen. Robert C. Byrd and Jay Rockefeller, both D-W.Va.
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UPDATE 2:30 p.m. April 15
All Names Released of Perished Miners
The names of all 29 miners killed in the Upper Big Branch Mine disaster have been released. To see the full list click here.
UPDATE 1:45 p.m. April 15
Massey: Benefits Not Provided to Settle Lawsuits
Massey Energy Thursday said reports that the company is providing benefits to families of the 29 miners killed in the Upper Big Branch Mine explosion have nothing to do with potential legal action.
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UPDATE 1:30 p.m. April 15
Manchin: Massey's Record Will Come Out During Investigation
Thursday, President Barack Obama ordered a review of mines with troubling safety records and called Massey Energy a "safety violator." Gov. Joe Manchin responds.
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UPDATE 4:45 p.m. April 14
Manchin Asks for Stand Down at Mines on Friday
Gov. Joe Manchin is asking for all miners to go to work on Friday, April 16, in honor of the 29 miners that lost their lives in the Upper Big Branch mine disaster. Coal production will be halted and reviews of procedures will take place to ensure a commitment towards safety.
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UPDATE 12:34 p.m. April 14
Air Quality Keeping Investigators Out of Upper Big Branch Mine
The West Virginia Office of Miners' Health and Safety reported Wednesday afternoon that investigators have not yet entered the Upper Big Branch Mine because of poor air quality.
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UPDATE 4:37 p.m. April 13
Lawmakers Call for Investigation into Department of Labor Computer Error
A U.S. Department of Labor computer error that impacted the issuance of a letter to the Upper Big Branch Mine has federal lawmakers calling for an investigation.
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UPDATE 1:18 p.m. April 13
McAteer to Head Upper big Branch Mine Independent Investigation Panel
Gov. Joe Manchin appointed J. David McAteer, assistant secretary for the Mine Safety and Health Administration under President Bill Clinton, to lead an independent panel appointed by the governor to investigate the Upper Big Branch Mine explosion, according to a news release from the governor's office.
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The bodies of all 29 miners who were killed in an explosion at the Upper Big Branch Mine April 5 were retrieved between 2 and 3 a.m. April 13, according to the West Virginia Office of Miners' Health, Safety and Training.
Retrieval efforts were hampered several times by dangerous gas levels.
The April 5 explosion killed 29 miners and injured two others.
Not long after the explosion, officials confirmed that 25 miners had been killed, two injured and four were missing. Rescue teams entered the mine in an attempt to locate the missing miners, whom they believed could be alive in one of two refuge chambers.
By 4:10 a.m. April 6, however, Gov. Joe Manchin said the teams had left the mine because of high gas levels. Seven of the 25 bodies had been recovered by that time. During a news conference that morning, Manchin said the explosion was, "a really horrific blast."
Throughout the morning of April 6, while rescue teams waited for gas levels to decrease, names of some of the victims slowly became public. During that time, drilling rigs were preparing to move into place on the mountain above the Upper Big Branch Mine. Rescuers were going to use the rigs to drill holes down to the mine shaft in an attempt to ventilate the methane, carbon monoxide and other gases so rescue teams could re-enter.
The first of those holes broke through to the mine shaft at 4:15 a.m. April 7, officials said. Workers then installed a fan and started venting toxic gases from the mine.
But it would be more than 24 hours later before teams could resume their search for the missing miners. That happened at 4:55 a.m. April 8. The rescuers rode in mantrips on the first part of their five-mile journey underground, then walked the rest of the way.
They were unable to reach their destination, however. At 10:15 a.m. April 8, Manchin announced that the teams were on their way back out of the mine because of high gas levels. Once they were clear of the mine, drilling on more ventilation holes resumed.
That scenario would be played out once more on April 9. After gas levels improved, rescuers returned to the mine at 12:45 a.m. April 9, but were forced to head back to the surface by 6:40 a.m. That time, a fire halted their advance.
To smother the fire, rescuers pumped nitrogen, an inert gas, into the mine shaft. That forced oxygen out of the mine, killing the fire.
Rescuers resumed their search at 2:44 p.m. April 9 after the fire was out and gas levels dropped. Several hours later, Manchin announced the mission now would be one of recovery and not of rescue.
"We did not receive the miracle that we had prayed for," he said. "We are recovering 29 brave miners at this time."
Neither of the rescue chambers in that part of the mine had been deployed, he said. It appears that all 29 victims were killed in the explosion.
Massey Energy announced April 10 that it would not release the victims' names.