A large plume of ash and steam rises from the Cotopaxi volcano as seen from Quito, Ecuador, Thursday, October 8, 2015. The Geophysics Institute said during the first week of October the Cotopaxi has shown an increase in ash and temperature emissions, and a notable glow in the crater. (Photo by Dolores Ochoa/AP Photo)
A large plume of ash and steam rises from the Cotopaxi volcano as seen from Quito, Ecuador, Thursday, October 8, 2015. The Geophysics Institute said during the first week of October the Cotopaxi has shown an increase in emission of ash and temperature, and a noted glow in the crater. (Photo by Dolores Ochoa/AP Photo)