Nevado Del Ruiz 1985 Eruption
Nevado Del Ruiz 1985 Eruption . On the november 13, 1985, an explosive eruption at the arenas crater (image center) melted ice and snow at the summit of the volcano. Nevado del ruiz erupted on 13 november 1985. Deadly Lahars from Nevado del Ruiz, Colombia from volcanoes.usgs.gov Remote measurements of sulfur dioxide flux after the eruption indicated active degassing at. It claimed the lives of an estimated 25,000. November 13, 1985, the nevado del ruiz volcano in columbia erupted sending ash, debris and lahars towards the city of armero.