2010 Copiapó mining accident 2010 Copiapó mining accident The 2010 Copiapó mining accident, also known then as the "Chilean mining accident", began on Thursday, 5 August 2010 with a cave-in at the San José copper–gold mine, located in the Atacama Desert north of the regional capital of Copiapó, in northern Chile. Thirty-three men, trapped underground and from the mine's entrance via spiraling underground ramps, were rescued after 69 days. After the state-owned mining company, Codelco, took over rescue efforts from the mine's owners, exploratory boreholes were drilled, and seventeen days after the accident a note was found taped to a drill bit pulled back
Ontario Mine Rescue to allow for a four-hour capability. The BG174 proved a workhorse for almost 40 years before it was replaced by the BG4. Ontario Mine Rescue took on added responsibility in 1984 after four miners were trapped and killed in a rockburst at Falconbridge No. 5 Shaft near Sudbury. The Stevenson Commission recommended that the organization's mandate be expanded to conduct training in and respond to non-fire emergencies. Training on non-fire rescue equipment began shortly after. In January 2001, responsibility for Ontario Mine Rescue was transferred to the Mines and Aggregates Safety and Health Association, now a part of Workplace Safety