Orange smoke billows out of Congolese volcano

November 8, 2011

Clouds of orange smoke and ash billowed out of Africa's most active volcano Nyamulagira, in the Democratic Republic of Congo, Tuesday after it erupted spectacularly at the weekend.

Surrounded by smoke, the volcano -- located in the eastern Virunga National Park -- was still erupting but was of no threat to locals or the living in the park, said Congo's Centre for Research and .

"A fountain of lava, smoke and ash came out of a fissure on the side" of a flat area east of the volcano, said CRNS researcher Dieudonne Wafula.

Ash could be carried some distance by the wind, potentially polluting water and burning crops, he warned.

Nyamulagira, which explodes on average every two years, last erupted in January 2010.

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not rated yet Nov 08, 2011
Nyamuragira, is the correct spelling
1 / 5 (1) Nov 09, 2011
What causes orange smoke? Sulphur?
5 / 5 (3) Nov 09, 2011
If ever there was an article that called for a picture then it is this on. (Instead of all the articles where we get mugshots of some smiling researcher - which is human and all, but not really relevant to the scientific content)
1 / 5 (1) Nov 09, 2011
What causes orange smoke? Sulphur?

sulphur appears yellowish but can also seem orangish depending on the lighting and composition.

Basu analyzed the lava, which resides in the world's largest lava lakemore than 600 feet wide inside the summit of Nyiragongoand found that the isotopic compositions of neodymium and strontium are identical to ancient asteroids.
not rated yet Nov 11, 2011
Agree with Anatalias Physorg - I've yet to see any photo or film footage of this 'spectacular' eruption.
5 / 5 (1) Nov 11, 2011
Found an image of the Nyiragongo Volcano with this story:
3 / 5 (2) Nov 12, 2011
Looks yellow to me. The whole are seems spectacularly dangerous. Google produces a lot of hits for it.


Every day the lava lake emits around 7,000 tons of sulfur dioxide
Which would explain that yellow smoke.


I haven't watched these except the start as I have download going that is finicky.

Started with shots of villages.

Stills at the start but impressive.

Starts with night video of lava lake.

not rated yet Nov 12, 2011
Thanks for those links, Eth. That last 'night video' has a sort of "Dante-esque" look to it. It looks like a cool type of eruption but I wouldn't want to be anywhere near it.
1 / 5 (1) Nov 13, 2011
I am a bit worried about the tree-planting programs run by the leaders of Republic of Congo, which is very close to the Democratic Republic of Congo. The trees have been recently planted in the R of C to prevent deforestation of the country, which has happened already within the Congo Basin. The rainforests are threatened by humans in the other countries nearby R of C. It's admirable that R of C is taking steps to prevent the same from happening in their own country, and perhaps the other countries will follow suit.
However, with sulfurous gases and ash blowing out of the volcano in D.R.of C., the possibility of it raining down on the newly planted trees is very good, depending on weather patterns and wind direction.


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