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Home Other Feature Post

Volcano in Ethiopia is spewing out blue lava… sort of

Mihai Andrei by Mihai Andrei
February 1, 2021
in Feature Post, Geology, Great Pics

Blue lava? Not quite

It’s a volcano, but not the kind of volcano we’re used to seeing. This is called a Cerulean eruption, and the blue tint that surrounds the lava comes from flames produced when escaping sulphuric gases burn. The volcano contains large amounts of pure sulfur, which emits an icy violet color as it burns, filling the air with toxic fumes. The picture above was taken in a low lying field in Ethiopia.

So what we’re seeing here is not actually blue lava, but normal, bright purple lava, surrounded by blue flames. Taking such a picture is never easy. French photographer Olivier Grunewald specializes on these images, which he takes without using any filters or image modification. In order to do this, he has to wait until dusk, when the blue flames are visible. He works with a gas mask to avoid breathing in the toxic fumes. The wind his biggest enemy.

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Photo Olivier Grunewald 03__fit_640x426
Grunewald in his “natural environment”.

“We have to take care when the winds push the flames close to us,” he says. “In Danakil it is easier to escape as the land is flat.”

But even with all these precautions, after taking this photo, he had peeling skin and clothes smelling of rotten eggs for weeks.

Not the first time

Typical blue flames of sulfuric gaz Kawah Ijen

It’s not the first time Grunewald has traveled around the world to take pictures of the so-called blue lava. In January, he traveled to Indonesia, to photograph he surreal hue of Indonesia’s Kawah Ijen Volcano. The volcano is the subject of a new documentary produced by Grunewald and Régis Etienne, the president of Geneva’s Society of Volcanology, which was released earlier this year.

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Here, you can see some of the magnificent pictures he has taken, as well as a short movie documenting how he takes the pictures.

Typical blue flames of sulfuric gaz Kawah Ijen

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Typical blue flames of sulfuric gaz Kawah Ijen

Mihai Andrei

Mihai Andrei

Andrei's background is in geophysics, and he's been fascinated by it ever since he was a child. Feeling that there is a gap between scientists and the general audience, he started ZME Science -- and the results are what you see today.

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