Update November 29, 2011
We just received an Email from Jean-Yves Saliez, the secretary of the BTC Rwanda, a BELGIAN DEVELOPMENT AGENCY. Jean-Yves was near the Nyamulagira volcano when it erupted and did take beautiful pictures of the eruption.
Click on the image below to watch the series in their original size.
A spectacular fire show started last night when Nyamulagira volcano (also known as Nyamuragira) began an eruption that happens about every two years. The eruption could be seen clearly from the Virunga park headquarters - probably the best view you could ask for. It appears that the eruption is not happening on the volcano itself, but on the side and lower to the ground. We’ll fill you in on details once we have them.
This is NOT the volcano that tourists hike to see the lava lake, but a far more active volcano just to the north. Most of the lava flows north into an area where no one lives, so it shouldn’t bring harm to people or wildlife as the flow is moving slowly.
Eruptions like this one can go on for days, weeks, or even months, so we’ll update you on the status.
(text courtesy gorilla - Virunga National Park)
Africa's most active volcano, Nyamuragira is a massive high-potassium basaltic shield volcano that rises about 25 km north of Lake Kivu, NW of Nyiragongo volcano. Nyamuragira, also known as Nyamulagira, has a volume of 500 cu km, and extensive lava flows from the volcano blanket 1500 sq km of the western branch of the East African Rift. The broad low-angle shield volcano contrasts dramatically with its steep-sided neighbor Nyiragongo.
The 3058-m-high summit of Nyamuragira is truncated by a small 2 x 2.3 km caldera that has walls up to about 100 m high. Historical eruptions have occurred within the summit caldera, frequently modifying the morphology of the caldera floor, as well as from the numerous fissures and cinder cones on the volcano's flanks.
A lava lake in the summit crater, active since at least 1921, drained in 1938, at the time of a major flank eruption. Historical lava flows extend down the flanks more than 30 km from the summit, reaching as far as Lake Kivu. (source Smithsonian Institution)
Mount Nyamuragira is an active volcano in the Virunga Mountains of the Democratic Republic of the Congo, situated about 25 km north of Lake Kivu.
It has been described as Africa's most active volcano and has erupted over 40 times since 1885.As well as eruptions from the summit, there have been numerous eruptions from the flanks of the volcano, creating new smaller volcanoes that have lasted only for a short time (e.g. Murara from late 1976 to 1977).
Sulfur dioxide emissions by volcanoes, 1979-2003.
The volcano is responsible for a large portion of the sulfur dioxide released into the atmosphere by volcanoes.
Lava flows from Nyamuragira (upper left) extend to Lake Kivu.
Extensive lava flows can be seen on satellite photographs going 25 km south-west to Lake Kivu, about 22 km north-west and 35 km north-north-east. Nyamuragira is only 13 km north-north-west of Nyiragongo, the volcano which caused extensive damage to the city of Goma in its 2002 eruption.
Nyamuragira volcano has a volume of 500 cubic km, and covers an area of 1500 km2. It has a low shield profile, and contrasts with adjacent steep-sided Nyiragongo volcano.
At dawn, January 2 2010, Nyamuragira began spewing out lava flows. There are no settlements close to the volcano, but wildlife officials fear that the eruption may threaten the chimpanzees in the area. Another danger is that the lava may soon flow into the southern sector of Virunga National Park, where there are settlements and villages. (Source : Wikipedia)