Much of the sparsely populated region about 155 miles ( 250 kilometers ) southwest of Bogota is a reservation for Nasa indigenous communities . Eruption likely within days or days at Nevado del Huila volcano , agency warns . Simbola volcano 's eruption killed Some 800 people in days . Some 800 families under evacuation from high-risk area . Eruption would cause avalanche down Paez and Simbola rivers , officials say .
Eruption likely within days or days at Nevado del Huila volcano , agency warns . Simbola volcano 's eruption killed Some 800 people in days . Some 800 families under evacuation from high-risk area . Eruption would cause avalanche down Paez and Simbola rivers , officials say .