Kawah Ijen Volcano in Indonesia Emits Eerie Blue Flames

French photographer Olivier Grunewald captured a stunning video of blue flames emanating from the Kawah Ijen volcano in Indonesia. The striking phenomenon is caused by molten sulfur emitted from the volcano in vast quantities and ignites when exposed to air.

E.D.W. Lynch
E.D.W. Lynch

Writer and humor generalist on the Internet and on Facebook.