The world's worst coal mining disasters
May 15, 2014 · Monongah Coal Mine Disaster (1907) – United States of America. Monongah Coal Mine Disaster occurred on 6 December 1907 at two mines of the Monogah mine facility in West ia. The worst coal mining astrophe in the US, the disaster led to the deaths of 362 people. Of which 171 of them were Italian migrants.