March 25 1947 Centralia mine disaster

In the Centralia mine disaster on March 25, 1947, the Centralia No. 5 coal mine exploded near the town of Centralia, Illinois, killing 111 people. The Mine Safety and Health Administration of the United States Department of Labor reported the explosion was caused when an underburdened shot or blown-out shot ignited coal dust. At the time of the explosion, 142 men were in the mine; 65 were killed by burns and other injuries and 45 were killed by afterdamp. Eight men were rescued, but one died from the effects of afterdamp. Only 31 miners escaped.

http://en.wikipedia.org/wiki/1947_Centralia_mine_disaster