Calbuco Volcano in southern Chile has erupted for the first time since 1972, with the last major eruption occurring in 1961 that sent ash columns 12-15 kilometers high.
This image was taken by the Suomi NPP satellite’s VIIRS instrument in a high resolution infrared channel around 0515Z on April 23, 2015.

Credit: NOAA/NASA/NPP/VIIRS Larger image