2011 Chile blackout
Encyclopedia
The 2011 Chile blackout was a major power outage
Power outage
A power outage is a short- or long-term loss of the electric power to an area.There are many causes of power failures in an electricity network...

 that occurred on 24 September 2011, approximately between 20:30 and 21:45 local time (23:30 and 00:45 UTC respectively), although the time of reinstatement varied geographically. It mainly affected the regions from Coquimbo
Coquimbo Region
The IV Coquimbo Region is one of Chile's 15 first order administrative divisions. It is some 400 km north of the capital, Santiago.The capital and largest city is La Serena, other important cities include the seaport Coquimbo and the agricultural centre...

 to Maule
Maule Region
The VII Maule Region is one of Chile's 15 first order administrative divisions. Its capital is Talca. The region takes its name from the Maule River which, running westward from the Andes, bisects the region and spans a basin of about 20,600 km2...

, where the blackout was total, but it also reportedly partially affected the Atacama
Atacama Region
The Atacama Region is one of Chile's 15 first order administrative divisions. It comprises three provinces, Chañaral, Copiapó and Huasco. It is bordered to the north by Antofagasta, to the south by Coquimbo, to east with Provinces of Catamarca, La Rioja and San Juan of Argentina, and to west with...

 and Bío Bío regions. The blackout affected approximately nine million Chileans.

The cause of the blackout, which started at 20:30 local time (UTC−03:00), is unknown, though Rodrigo Álvarez Zenteno, Minister of Energy, noted a computer system malfunction and "oscillation problems" affecting two power lines. The blackout interrupted mobile phone service and forced the evacuation of thousands of rail and rapid transit
Rapid transit
A rapid transit, underground, subway, elevated railway, metro or metropolitan railway system is an electric passenger railway in an urban area with a high capacity and frequency, and grade separation from other traffic. Rapid transit systems are typically located either in underground tunnels or on...

 passengers in Santiago
Santiago
Santiago is the capital city of Chile. Santiago may also refer to:*Santiago *Santiago , a Spanish given name*Santiago!, a shortened form of the Reconquista battle cry "Santiago y cierra, España"...

, the capital city. It also delayed a concert by pop
Pop music
Pop music is usually understood to be commercially recorded music, often oriented toward a youth market, usually consisting of relatively short, simple songs utilizing technological innovations to produce new variations on existing themes.- Definitions :David Hatch and Stephen Millward define pop...

 singer Ricky Martin
Ricky Martin
Enrique "Ricky" Martín Morales , better known as Ricky Martin, is a Puerto Rican and Spanish pop singer and actor who achieved prominence, first as a member of the Latin boy band Menudo, then as a solo artist since 1991.During his career he has sold more than 60 million album copies worldwide...

  A supermarket in Quilicura
Quilicura
Quilicura founded in 1902, is a commune of Chile located in Santiago Province, Santiago Metropolitan Region. It is a satellite city on what was originally the outskirts of the city of Santiago, but as urban sprawl has set in it is now quickly urbanizing from what was recently prime agricultural land...

 was looted, and a youth was wounded during a confrontation between the looters and police.

The outage affected operations at a number of copper
Copper
Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish...

 mines, of which Chile is the world's top producer. The Los Bronces mine, operated by Anglo American, halted production temporarily and later, with power from generators, resumed at one-third capacity. CODELCO
Codelco
CODELCO is the Chilean state owned copper mining company formed in 1976 from the foreign owned copper companies that were nationalised in 1971. The headquarters are in Santiago and the seven-man board of directors is appointed by the President of the Republic...

, Chile's state-owned copper mining company, reported that its Andina division and the El Teniente
El Teniente
El Teniente is an underground copper mine in the Chilean commune of Machalí in Cachapoal Province, O'Higgins Region, near the town of Sewell, above mean sea level in the Andes. Mining at El Teniente is reported to have started as early as 1819...

mine had lost power but continued operations using generators until power was restored.
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