Blue Fire of Kawah Ijen
Photo and caption by Alvin Leow
The blue fire of Kawah Ijen is really caused by the ignition of leaking sulphur fumes from sections of ceramic pipes laid to a volcanic vent. The pipes serve to condense gaseous sulphur into molten and eventually solid form so it can be manually mined. But these gases are hazardous interferences to sulphur mining and even the most seasoned of miners need to step away from the ends of the pipes for a breather when the gas cloud gets too thick.
Location: Kawah Ijen, East Java, Indonesia