Today marks the anniversary of the Indonesian volcano, Krakatoa, which erupted catastrophically on August 27, 1883. The Australian Bureau of Meteorology has a history of the event at http://www.bom.gov.au/tsunami/history/1883.shtml. It is considered to be one of the most explosive eruptions in history and it is said that the shock waves in the atmosphere went around the globe seven times. It also put a large amount of ash and sulfuric acid into the atmosphere, cooling off global temperatures for several years.
The story says that the red skies seen in Edvard Munch’s famous 1893 painting The Scream reflected the volcanic sunsets seen in Norway and around the world in the months following the eruption.