4 Dead 57 Trapped In China Coal Mine Rock Blast
Occured
a rock explosion that followed a small earthquake, it caused 57 miner were trapped and 4 miners were killed
in a coal mine in the city of Sanmexia in Henan Province. It happened Thursday
evening when 75 miners were working in the shaft. Approximately 200 workers
were making a small hole about 500 meters deep to rescue the trapped miners
A
magnitude -2,9 earthquake happened to the east of Sanmexia and rock explosion
occured about 30 minutes later. That is
a phenomenon calls “rock burst”, occurs when settling layer of earth go down on
the walls of mine and it ensues suddenly. It explosion can turn chunks of rock
into something deadly and the shock waves can be lethal.The survivor from rock
burst depends on the intensity of the rock explosion and skill of rescuers to make ventilation to them.
The
Yima city Communist Party`s head of propaganda said that if it had been not
very strong, it might have cause the tunnel to get narrower, but they might still
be able to send some air in there to ensure ventilation.
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