List of disruption for the Chile’s Escondida these years

Following is a timeline of strikes, accidents and weather problems that disrupted mining operations in Chile, the world's top copper producer, over the past year.
We now are listing all the disruption to the world’s largest copper producer in the past few year
November 2010 - A 32-day strike at the giant Collahuasi mine, the longest ever at a major private Chilean mine
February 2011 - Unusually hard rains in the Atacama desert halted output at Escondida for about four hours in late February.
 April 2011 - Collahuasi lifted a force majeure on copper concentrate exports imposed after an accident at its key sea terminal in December.
April 2011 - Global miners Anglo American and Xstrata posted a drop in first-quarter copper output as heavy rains hit operation in northern Chile.
June 2011 - Violent protests by contractors demanding higher wages forced Codelco to slow operation at the world's No.5 copper mine El Teniente.
June 2011 - A power outage in northern Chile slowed operations at some the world's top copper mines for several hours.
June 2011 - Union leaders briefly blocked roads to Codelco's giant Chuquicamata mine in June in a protest that did not hit output.
 July 2011 - A once in half a century winter storm hit mining operations in Chile's copper-rich north in July, forcing more than half a dozen mines to halt operations or slow mining after dirt roads at their open pit operations became dangerously slippery
July 2011 - Thousands of Codelco union workers staged a company-wide strike for one day to demand a bigger say in the state-run miner's restructuring plans.

Some human issue can be avoided indeed by the well defined plan, the natural disater will some not be avoided which will cause people and marchinery damage, which can really do any thing about that.