Smoke and ash billow from Nevado del Ruiz volcano, as seen from Manizales city, in this file handout picture taken on June 17, 2012, and received by Reuters on June 30, 2012. Colombia evacuated people from communities close to the Nevado del Ruiz volcano after an eruption on June 30, 2012 that spewed smoke and ash from its crater, bringing back memories of avalanches that in 1985 buried tens of thousands under rocks. [Photo/Agencies]