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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.
Mining accidents can occur from a variety of causes, including leaks of poisonous gases such as hydrogen sulfide [ 2 ] or explosive natural gases, especially firedamp or methane , [ 3 ] dust explosions , collapsing of mine stopes , mining- induced seismicity , flooding, or general mechanical errors from improperly used or malfunctioning mining equipment such as safety lamps or electrical equipment.
The use of improper explosives underground can also cause methane and coal dust explosions. On April 26, , during World War II, in the Benxihu Honkeiko coal mine in Liaoning Province, China, what is believed to be the worst mining disaster in history took the lives of over 1, people. The disaster occurred in an area that is now within the borders of modern-day China but was at the time part of the puppet state of Manchukuo established by Japan after it invaded and occupied northeast China in the s.
