The world''s worst coal mining disasters Mining Technology
May 15, 2014· Dhanbad Coal Mine Disasters (1965 and1975) – India. The Dhanbad coal mine disaster occurred on the night between 27th and 28th May. The disaster was caused by an explosion in Dhori colliery near Dhanbad, the major coal mining town in India. 375 miners were killed in the disaster. It was a firedamp and coal dust explosion.