As previously reported, intermittent lava fountains appeared on top of Nyamulagira volcano since April 2014. These lava fountains, first erroneously interpreted as a lava lake by NASA in June 2014 , were observed for the first time in the field in July 2014 by a team of Congolese, Belgian, Luxembourgish and Italian scientists .
Around mid-September, this activity stopped, but reappeared in early November as a small bubbling lava lake, at the same location as the lava fountains observed in July (see the previous news article for location details). It is uncertain if this activity will persist or not. If the current activity is similar to what occurred between 1913 and 1938 at that volcano, we will probably have intermittent activity that may progressively give birth to a long-lived active lava lake, as it is the case at the neighbouring Nyiragongo volcano.
Our article on the recent eruptive activity at Nyamulagira has recently been published this week, in EOS Transactions. Click on the picture below to access the paper!
Recent lava fountains in the pit crater of Nyamulagira volcano – Photo (c) B. Smets, July 2014
First publication: 10 September 2014
Updated: 21 October 2014
Sporadically from April 2014, then more systematically since 22nd June 2014, a red glow has become visible on top of Nyamulagira (or Nyamuragira), the most western volcano of the Virunga Volcanic Province. On 1st and 5th July 2014, helicopter flights confirmed the presence of lava fountains in the 400 × 600 m-wide pit crater located in the NE sector of the caldera.
First information on the Internet about this new eruptive activity came from the NASA Earth Observatory , which published a satellite image acquired by Landsat 8 on 30th June 2014, where a strong red glow is visible in the Nyamulagira caldera. NASA said that a new lava lake appeared at Nyamulagira, but field observations deny this affirmation. Indeed, if the red glow on the Landsat image looks similar to the one caused by the Nyiragongo lava lake, it is however caused by fire fountains. So, currently, there is no active lava lake sensu stricto at Nyamulagira
Unfortunately, this misleading information was quickly relayed on several websites (e.g.  ) and even in scientific literature , as it is often the case for this volcano and the neighbouring Nyiragongo.
More (correct) information about this activity has been published in EOS Transactions. In addition, images of this activity, which were acquired in early July 2014 by N. d’Oreye, F. Kervyn and me during helicopter flights and field work in the Nyamulagira caldera, are available here (Click on the image below).
Fire fountains observed in the pit crater located in the NE part of the Nyamulagira caldera, on 1st July 2014.
Photo: (c) B. Smets – 2014
Last 5th July, we were dropped in the caldera of Nyamulagira. I filmed the helicopter during take off. Conclusions: it hurts and it can destroy camera protections. Hence, do not stay close to a helicopter during take off… NEVER!!! 🙂
[EN] Today, 23rd July 2014, a whole page of the newspaper « La Meuse » has been dedicated to my recent field mission on Nyamulagira during which we observed new eruptive activity in the central caldera of the volcano. Click on the image below to see the full article (in French).
[FR] Aujourd’hui, le 23 juillet 2014, une page entière du journal « La Meuse » a été dédié à ma récente mission de terrain sur le Nyamulagira, durant laquelle nous avons observé une nouvelle activité éruptive dans la caldera centrale du volcan. Cliquez sur l’image ci-dessous pour voir l’article complet.
In October 2013, Benoît Smets, Nicolas d’Oreye, François Kervyn and Adrien Oth have received the FNR Award for the Oustanding Promotion of Science to the Public, thanks to the documentary « Nyiragongo, expédition sur un lac de lave » realized by B. Luypaert for the Belgian Public television, and for the public conferences organized by the scientists in both Belgium and Luxembourg.
FNR AWARDS CEREMONY 2013
From left to right: Adrien Oth, Benoît Smets, Nicolas d’Oreye.
More information about the FNR Awards here.