Upper Big Branch Mine disaster
The Upper Big Branch Mine disaster occurred on April 5, 2010, in Montcoal, West Virginia. An explosion in the mine killed 29 miners and was one of the deadliest mining accidents in the United States in decades. The incident raised significant concerns about safety practices and regulations in the coal mining industry.
Investigations revealed that the explosion was caused by a buildup of methane gas and coal dust. The mine, operated by Masontown Coal Company, faced numerous safety violations prior to the disaster. The tragedy led to increased scrutiny of mining safety regulations and prompted changes in enforcement by the Mine Safety and Health Administration.