Immediately after the mine collapse the men huddled and slept for days in the 50 square meter (500 meter) refuge.
Chile has held ceremonies to mark the anniversary of the mine collapse that left 33 men trapped for 69 days.
The ordeal stirred memories of a 2010 Chilean mine collapse in which 33 men were trapped underground for 69 days.
Jose Ojeda penned the note "Estamos bien en el refugio los 33" ("We are okay in the refuge, the 33 of us") which was discovered attached to a probe 17 days after the mine collapse.
BBC: Message which brought hope now copyright of Chile miner
Murray has insisted a magnitude-3.9 earthquake caused the mine collapse, and has said at least 10 "aftershocks" have been recorded, with seismic activity earlier wiping out more than 300 feet of progress and halting rescue efforts temporarily.
CNN: Camera lowered into mine cavity shows 'survivable space'
The 2010 mine explosion and collapse at the Upper Big Branch Mine in West Virginia that killed 29 miners played a role in the slowdown.
Seismologists and geophysicists have not been as sure, saying the seismic activity they measured appeared to stem from the mine's collapse.
CNN: Camera lowered into mine cavity shows 'survivable space'
The inquest was told there had been another roof collapse at the mine five days earlier.
BBC: Gerry Gibson pit death inquest: Miners' rescue attempts
The authority said it was using clay to plug the 13ft (4m) wide hole, caused by the collapse of a mine shaft.
However, the shop closed in April 1998 when the building began to collapse because of old mine workings.
It is not clear if he was injured in the collapse at the Victoria mine, some 40km (25 miles) from Vallenar.
Mamani had only been working in the mine for five days before the collapse, and his father-in-law has told reporters that Mamani has decided to never work in a mine again.
The collapse occurred at the Big Gossan underground mine, about a kilometer away from Grasberg.
Mr Winstanley and Mr Sheldon said they were aware of the previous collapse but had not received a specific safety talk and were not aware of an exclusion zone within the mine.
BBC: Gerry Gibson pit death inquest: Miners' rescue attempts
应用推荐