Nyamuragira volcano news & eruption updates:
Nyamuragira volcano (DR Congo): lava lake reappears
zo, 12 jun 2016, 12:0512:05 PM | DOOR: T
A small lava lake has reappeared in April, it seems. An expedition by staff of the Goma volcano observatory and MONUSCO observed a small lava pond present in the inner pit during 27 April.
Nyamuragira's pit crater with a small lava lake observed on 27 April 2016; volcanologist Sebastien Valade takes thermal measurements from the rim. (Image: MONUSCO via Culture Volcan)
The volcano had suffered strong deflation during the large fissure eruption on the NE flank during end of 2011-early 2012, which had effectively drained magma from the central conduits.
The re-filling of of the central reservoirs began gradually afterwards and resulted in the formation of a new lava lake that appeared some time afterwards and had been observed repeatedly between 2014 and early 2016. According to the limited information available, it seems that it suddenly disappeared in late March 2016 or early April, but now it has at least partially reappeared.
High-res images from satellite Landsat 8 satellite in early May confirm the direct observation from 27 April and show an intense thermal hot spot and dense degassing from the inner pit crater, which can almost certainly be attributed to the presence of fresh lava there.
Compared to earlier observations in 2016, the pit crater has not undergone significant changes.
Koppelingen / Bronnen:
Koppelingen / Bronnen:
- Le lac de lave à nouveau observé sur le volcan Nyamulagira (Culture Volcan)
Sat, 16 Apr 2016, 09:43
The lava lake at the bottom of the inner pit in the volcano's summit caldera has recently disappeared, a recent survey by scientist from the Goma volcano observatory (OVG) and UN showed. ... Lees alle
Sat, 29 Nov 2014, 02:14
Voor de eerste keer in 75 jaar, verscheen een nieuwe lava-meer op een aantal van de meest actieve stratovulkanen Africaâ ™ s: Mount Nyamuragira in de Democratische Republiek Congo. De naburige vulkanen van Nyamugira en Nyiragongo maken beide deel uit van de keten Virunga vulkanische in de Oost-Afrikaanse Rift, gelegen langs DR Congo grens met Rwanda. Zij zijn beroemd als twee van de paar vulkanen op aarde die lava meren voor enkele tientallen jaren hebben opgelopen. De eerdere lava lake op Nyamuragira geleegd in 1938 als de lava uit de top gegoten en meer dan 30 kilometer naar het Kivumeer stroomde. Het nieuwe lava meer lijkt te hebben gevormd aan de onderkant van de 500 m diepe krater die was achtergelaten door deze 1938 lava vloed. ... Lees alle
Mon, 4 Aug 2014, 15:54
It is uncertain whether the eruption at Nyamuragira still continues, i.e. whether the new lava lake detected in July still exists. Lees alle
Mon, 7 Jul 2014, 17:09
The new eruption continues in the form of a lava lake in the summit caldera. No evidence of lava flowing on the flanks of the giant volcano is availabe. ... Lees alle
Thu, 3 Jul 2014, 07:10
A new eruption is occurring at the volcano. A lava lake has appeared in the main pit inside its summit caldera, but so far, reports of lava flows (presumably from flank vents) on the northern slope of Nyamuragira could not be verified. ... Lees alle