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Quebrada Hualcán | Drainage tunnel of Laguna 513

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The level of Laguna 513 was lowered through a system of tunnels in order to reduce the outburst hazard. Nevertheless, in 2010 an ice avalanche led to an impact wave overtopping the bedrock dam and evolving to a debris flow and flood that caused some damage in the Quebrada Hualcán all the way down to the town of Carhuaz.