Stunning Electric-Blue Flames Erupt From Volcanoes

Burning sulfur forms lava-like rivers of light at Indonesia's Kawah Ijen volcano and other craters.
Indonesia's Kawah Ijen and other craters emit rivers of light from burning sulfur.

Kawah Ijen volcano in Indonesia spewing blue flames as stunned

What Causes A Volcano Eruption

Popular picture Blue fire Kawah Ijen

Vulcão na Indonésia expele lava azul

Blue Lava Volcano

How Blue Lava Works and Where to See It

Pics Show 'Blue Lava' Erupting From a Volcano in Ethiopia

Why Does This Indonesian Volcano Burn Bright Blue?

38 - Sub Specie Aeternitatis (Ijen Plateau, East Java, Indonesia) —