An explosion at the Massey Energy Co. mine in Montcoal, West Virginia, killed at least 25 miners. The cause of the explosion had not been determined as rescuers worked Tuesday to bore ventilation holes into the Upper Big Branch Mine. This is a chronological list of notable coal mine accidents in the United States over the last century. The list is not all-inclusive. * December 6, 1907 -- Worst coal mine disaster in U.S. history: 362 miners are killed in an explosion at the Monongah Nos. 6 and 8 Coal Mines in Monongah, West Virginia.
The U.S. government Thursday announced its highest penalty for coal mine safety violations, $1.85 million, for a collapse that killed six miners in Utah last year.
The Crandall Canyon mine collapse that killed six miners in Utah last summer lasted only seconds and was not caused by an earthquake, a new study says.
A criminal investigation should be opened into whether the operators of Utah's Crandall Canyon mine purposely misled safety officials about mine conditions before the deadly 2007 collapse, the chairman of a House investigation committee said Thursday.
Federal safety officials were negligent in their approval of work plans for a Utah coal mine that collapsed in August 2007, leaving nine dead, a Labor Department report concluded Monday.
Federal authorities on Thursday ordered Andalex Resources Inc. to pay $420,300 in fines for "flagrant violations" at a coal mine it operates in Price, Utah.
The press does not have the right to get access to the government's investigation into the deadly August accident at the Crandall Canyon mine, a federal judge in Utah ruled Tuesday.
Court proceedings of the investigation into the collapse of Utah's Crandall Canyon mine should not be made public, argue attorneys for the Mine Safety and Health Administration.
Relatives of those lost in the Crandall Canyon mining disaster tell Congress about their loss.
Relatives of the six dead Utah miners told a House committee Wednesday that their loved ones were victims who had voiced safety concerns prior to the August 6 collapse.
A coalition of news media organizations has filed suit in an effort to get the government investigation into the Crandall Canyon mine accident opened to the public.
There is "no remaining hope" of finding six men trapped for almost a month in a Utah coal mine alive, a federal official said Saturday.
A video camera that was lowered down a seventh hole Thursday in search of six coal miners trapped inside a mountain found only a few feet of clear space and piles of rubble and mud, federal officials said.
Crews searching for any sign of six miners trapped for more than three weeks are "hoping a miracle could happen," a federal official told lawmakers Wednesday, while another hole was drilled to insert a robotic camera into the mountain.
A robotic camera lowered into a mountain became stuck 10 feet from its target, forcing crews to come up with another route to attempt getting video of an area where six miners might be trapped, an official said Tuesday.
As the search for six trapped miners entered its fourth week, bad weather postponed longshot efforts to drop a robotic camera deep into a Utah mountain to find the missing men.
Among coal industry's safest?
Images from a robotic camera could be available Monday to searchers trying to find six miners who have been trapped inside a collapsed Utah mine for three weeks.
A sixth bore hole drilled into a space where six Utah miners were thought to be trapped found that the chamber contained no space where the men could have survived, an attorney representing some of the miners' families told CNN.
Lawmakers in Washington announced twin probes into safety at the Utah mine where six miners were trapped and three rescuers were killed
Rescuers trying to find six miners will begin boring a sixth hole down into Utah's Crandall Canyon mine Friday, and the search will stop if no signs of life are found, the coal mine's co-owner said.
A rare look inside the mine
Ever since the Crandall Canyon Mine collapsed Monday, reporters had been kept some distance from it as we covered the story. We asked the owner for closer access; he said no.
As relatives awaited word on the conditions of the six men trapped 1,500 feet underground in a collapsed Utah mine, community members gathered in local churches to lend their support and prayers.
Marta Sanchez sits and stares across the kitchen table clutching a coffee mug with both hands. She puts the cup down for a moment to rub her eyes and lets out a deep breath of frustration.