The world’s top 5 most worrisome dormant natural disasters
View of the plume of Chilean volcano Puyehue reflected on Nahuel Huapi lake in Bariloche, Rio Negro, some 1600 km southwest of Buenos Aires, on June 21, 2011. The ash cloud created by the eruption threatened to put an end to the tourist season at the Argentine skiing resort of Bariloche, just 100 kilometers (60 miles) southeast of Puyehue.
Francisco Ramos Mejia
As Mexico's 'Popo' volcano stirs, we take a look at other looming disasters around the world.
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