View from the Nahuel Huapi lake, province of Rio Negro, 1570 km southwest of Buenos Aires, of a menacing cloud from the Calbuco volcano in neighbouring Chile, on April 22, 2015. Chile's Calbuco volcano erupted on Wednesday, spewing a giant funnel of ash high into the sky near the southern port city of Puerto Montt and triggering a red alert. Authorities ordered an evacuation for a 10-kilometer (six-mile) radius around the volcano, which is the second in southern Chile to have a substantial eruption since March 3, when the Villarrica volcano emitted a brief but fiery burst of ash and lava. AFP PHOTO/FRANCISCO RAMOS MEJIA (Photo credit should read Francisco Ramos Mejia/AFP/Getty Images)
