Senghenydd Colliery Disaster

Date: October 14, 1913 • Location: Abertridwr, United Kingdom

The worst mining accident in the United Kingdom's history took place when an explosion resulted in 440 deaths at the Universal Colliery in Senghenydd, Wales.

A mining accident is an accident that occurs during the process of mining minerals or metals. Thousands of miners die from mining accidents each year, especially from underground coal mining, although accidents also occur in hard rock mining. Coal mining is considered much more hazardous than hard rock mining due to flat-lying rock strata, generally incompetent rock, the presence of methane gas, and coal dust. Most of the deaths these days occur in developing countries, and rural parts of developed countries where safety measures are not practiced as fully. A mining disaster is an incident where there are five or more fatalities.