55°46′19″N 4°05′13″W / 55.772°N 4.087°W
The Udston mining disaster occurred in Hamilton, Scotland on Saturday, 28 May 1887 when 73 miners died in a firedamp explosion at Udston Colliery. Caused, it is thought, by unauthorised shot firing[1] the explosion is said to be Scotland's second worst coal mining disaster.[2]
Keir Hardie, then Secretary of the Scottish Miners' Federation, denounced the deaths as murder a few days later.[3]