Volcanic lightning, also known as a dirty thunderstorm, is a natural weather phenomenon related to the production of lightning in a volcanic plume. One famous image of the phenomenon was photographed by Carlos Gutierrez and occurred in Chile above the Chaiten Volcano. Other instances have been reported above Alaska’s Mount Augustine volcano and Mount Etna in Sicily, Italy. A recent study mentioned in a science journal claimed that the electrical charges are generated when rock fragments, ash, and ice particles in a volcanic plume collide and produce static charges, just as ice particles collide in regular thunderstorms. These violent eruptions also release large amounts of water, which may help fuel these thunderstorms. Continue reading to see them all. Click here for more volcanic lightning pictures.