As an aside my Grandfather(died 1950) remembered the colored sunsets occasioned by the explosion of Krakatoa.
There was a movie or book about that explosion: “Krakatoa: East of Java” was the name, the only problem was that Krakatoa is west of Java.
http://www.imdb.com/title/tt0064555/
PLOT: “The Dutch East Indies, in the late 19th century. Capt. Hanson of the “Batavia Queen” is preparing to embark on a salvage expedition. His mistress, Laura, knows the location of a ship belonging to her late husband, a shipwreck concealing a cargo of rare pearls. A diver and a diving bell are aboard ship. But a government agent coerces Hanson into accepting a shipment of convicts for the ship’s hold. The wreck lies dangerously close to the erupting volcano on the island of Krakatoa, where Laura’s young son attends the convent school...”
Same with the Pinatubo volcano about 24 years ago. Beautiful sunsets.