2010 Copiapó mining accident San Jose Mine were around 20% higher than at other Chilean mines due to its poor safety record. The collapse occurred at 14:00 CLT on 5 August 2010. Access to the depths of the mine was by a long helical roadway. A group nearer the entrance escaped, but a second group of 33 men were trapped deep inside. A thick dust cloud caused by the rock fall blinded the miners for as much as six hours. Initially, the trapped miners tried to escape through ventilation shafts, but the ladders required by safety codes were missing. Luis Urzúa, the duty shift
Sheppton Mine disaster and rescue Sheppton Mine disaster and rescue The Sheppton Mine disaster and rescue in Sheppton, Pennsylvania, United States, was one of the first rescues of trapped miners accomplished by raising them through holes bored through solid rock, an event that gripped the world's attention during August 1963. The roof of the Sheppton anthracite coal mine collapsed on August 13 and three miners were trapped 300 feet below ground. A small borehole was drilled from the surface in an attempt to contact the miners. After several days a borehole successfully reached a mine, and revealed that two of the miners, Henry Throne and