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2010 Copiapó Mining Accident and Rescue
Category: History & Politics Key figures: The 33 trapped miners (Los 33); Florencio Ávalos (first miner rescued); Sebastián Piñera (Chilean President); André Sougarret (rescue engineer)
Summary
On August 5, 2010, a cave-in at the San José copper-gold mine near Copiapó in northern Chile’s Atacama Desert trapped 33 miners approximately 700 meters (2,300 feet) underground and 5 kilometers from the mine entrance. Thirty-two of the miners were Chilean and one was Bolivian. One worker escaped the initial collapse.
For 17 days, the fate of the miners was unknown. On August 22, a drill probe reached a lower level of the mine and returned to the surface with a note written in red ink, reading “We are well in the Refuge — the 33.” The message confirmed that all 33 men had survived the initial accident and reached the mine’s emergency refuge area.
Chilean authorities and international partners mounted three simultaneous drilling operations to bore a rescue shaft wide enough to extract the men. Plan A used a Strata 950 raise boring machine; Plan B employed a Schramm T130XD drill; Plan C used a Rig-421. Plan B proved successful, breaking through to the miners’ workshop area on October 9, 2010.
The Chilean Navy designed a rescue capsule — designated Fénix 2 — with input from NASA. The capsule was 54 centimeters (21 inches) in diameter and equipped with retractable wheels, an oxygen supply, lighting, video and voice communications, and an escape hatch. It arrived at the mine site on September 25, 2010.
The extraction operation, named Operation San Lorenzo, began at 11:00 p.m. on October 12, 2010. Each miner was individually winched to the surface through the narrow borehole in the Fénix capsule, a journey of approximately 15 minutes per ascent. Florencio Ávalos was the first miner to reach the surface, arriving at 12:11 a.m. on October 13. The final miner, shift supervisor Luis Urzúa, was brought out last. All 33 miners were rescued alive over a period of approximately 24 hours. The entire operation was broadcast live worldwide, with an estimated 1 billion television viewers watching.
Significance
The Copiapó rescue was an unprecedented international survival and engineering story. It demonstrated the capacity of multinational technical cooperation — involving teams from the United States, Canada, Australia, and South Africa — to solve an extreme industrial emergency. NASA’s involvement highlighted the overlap between deep-mine survival and long-duration space mission medicine. The 69-day ordeal and successful rescue drew one of the largest simultaneous global television audiences of 2010 and generated sustained international coverage. The event prompted scrutiny of mine safety standards in Chile and across Latin America, and the miners’ story was subsequently adapted into books and a 2015 feature film, The 33.
Sources
- 2010 Copiapó Mining Accident — Wikipedia
- Chile Mine Rescue of 2010 — Britannica
- 2010 Chilean Mine Rescue Fast Facts — CNN
- The Capsule That Saved the Chilean Miners — Smithsonian Magazine
- Chilean Miners Rescue Oral Histories — NASA
Related
- 2010 Haiti Earthquake — major rescue and humanitarian event earlier in 2010
- Deepwater Horizon Oil Spill — major industrial disaster of 2010