Nevado del Ruiz volcano threat level raised in Colombia.

Colombia has raised the threat level for the Nevado del Ruiz volcano due to an increase in seismic activity, including rock fracturing and earthquakes. The volcano, responsible for the country's largest recorded natural disaster in 1985, has been in a continuing eruption period since 2014. An orange alert has been issued, meaning an eruption is likely in weeks or even days. The surrounding communities have been urged to remain calm but be attentive to any developing news about the state of the volcano.