During the last few days, volcanic activity was recorded in Nevado del Ruíz, seismic movements ... The current activity of Ruiz is associated with the fracturing of a rock inside the volcanic ...

The 1985 Nevado del Ruiz stratovolcano eruption killed over 22,000 people from the surrounding area, triggering pyroclastic flows which set off mudflows and landslides that spread across nearby towns.