Volcano Nevado del Huila remains unstable and at risk of erupting, officials said Monday, a day after a 4.0 earthquake shook the cone in southcentral Colombia.
A yellow alert remains in effect in the zone and the National Emergency System has prepared to evacuate local resients in case of an eruption, reported Caracol Radio.
Geologists from the Popayán Volcano Observatory said that although the cone is shedding ice from its northern slope, they anticipate no repeat of the avalanches into the canyons of the Páez and Simbolá rivers that occurred the last three times the volcano heated up.
The current activity dates to the first days of September. The volcano has not caused a major disaster since 1994, when an eruption caused an avalanche that killed more than 1,000 people.