Nyiragongo volcano (DR Congo): expedition to the lava lake (June 2017)
A selection of photographs taken by Ingrid Smet during our June 2017 Nyiragongo lava lake and mountain gorillas expedition in the DR Congo which included a 3 days / nights stay on Nyiragongo volcano.
On 6 June the group completed their hike to the summit in dry weather (the people coming up in the next two days were not so lucky) but had to wait a few hours for a first glance onto the red hot lava lake until the clouds around the stratovolcano´s summit and the thick volcanic gasses inside the caldera had temporarily lifted. The next 2 days (7 and 8 June) visibility into the caldera was usually best in the mornings and at intervals during the night, with more clear circumstances in the early morning and right through to dawn and sunrise on the 8th of June. The world´s largest lava lake (about 220 m across) is situated some 400 m below the rim of Nyiragongo´s summit caldera (a diameter of 1.2 km). When visible, the surface of the active lava lake was continuously in motion as exploding gas bubbles create small degassing fountains that recycle the cold black crust back into the red hot liquid lava. Strong degassing also occurred from the edges of the lava lake, the 2016 hornito and along the southern fracture zone.
On 6 June the group completed their hike to the summit in dry weather (the people coming up in the next two days were not so lucky) but had to wait a few hours for a first glance onto the red hot lava lake until the clouds around the stratovolcano´s summit and the thick volcanic gasses inside the caldera had temporarily lifted. The next 2 days (7 and 8 June) visibility into the caldera was usually best in the mornings and at intervals during the night, with more clear circumstances in the early morning and right through to dawn and sunrise on the 8th of June. The world´s largest lava lake (about 220 m across) is situated some 400 m below the rim of Nyiragongo´s summit caldera (a diameter of 1.2 km). When visible, the surface of the active lava lake was continuously in motion as exploding gas bubbles create small degassing fountains that recycle the cold black crust back into the red hot liquid lava. Strong degassing also occurred from the edges of the lava lake, the 2016 hornito and along the southern fracture zone.

Morning view on Nyiragongo´s main summit cone (right) and southern satellite crater Shaheru (left) o... [info]
(443 visti)
(443 visti)

Silhouette of the Nyiragongo massif and its 3 overlapping cones: the southern Shaheru crater (left),... [info]
(438 visti)
(438 visti)

The successful climb to Nyiragongo´s summit was rewarded with views onto its actively churning lava ... [info]
(1005 visti)
(1005 visti)

Geometric pattern of the thin black crust on the lava lake´s surface that is continuously broken apa... [info]
(1142 visti)
(1142 visti)

Nyiragongo´s lava lake seen on the night of 6 June 2017 when clouds and gass plumes were minor and a... [info]
(848 visti)
(848 visti)

Deeper within the lava lake, gas collects into bubbles that rise to its surface where they explode, ... [info]
(879 visti)
(879 visti)

On the morning of 7 June 2017 there are no clouds over the volcano´s summit and the gasses rise vert... [info]
(584 visti)
(584 visti)

Closer view onto the still degassing hornito that suddenly erupted in the spring of 2016 southeast o... [info]
(551 visti)
(551 visti)

View onto the central part of the Nyiragongo summit caldera with its different terraces and ca 220 m... [info]
(692 visti)
(692 visti)

Radially arranged nepheline crystal aggregates can be found in some of Nyiragongo´s lavas. The very ... [info]
(605 visti)
(605 visti)

View onto Shaheru crater from the summit of Nyiragongo (with the camp´s toilet in the bottom right c... [info]
(496 visti)
(496 visti)

Nyiragongo´s lava lake in the early hours of 8 June 2017. Strong degassing from the rim of the lake ... [info]
(527 visti)
(527 visti)

View onto the breaking up lava lake crust and some degassing fountains through the fumarole plumes. ... [info]
(624 visti)
(624 visti)

The lava lake´s red glow illuminates the steep inner walls of Nyiragongo´s summit caldera whilst th... [info]
(383 visti)
(383 visti)

Observing and photographing Nyiragongo´s lava lake in the early hours of 8 June 2017. (Photo: Ingrid... [info]
(518 visti)
(518 visti)

View onto the lava lake from Nyiragongo´s summit with the first day light appearing in the sky behin... [info]
(641 visti)
(641 visti)

Nyiragongo´s summit caldera and lava lake at dawn of 8 June 2017. (Photo: Ingrid Smet) [info]
(360 visti)
(360 visti)

Closer view onto the world´s largest lava lake just before sunrise when the gass plumes reflect the ... [info]
(364 visti)
(364 visti)

The silhouettes of neighbouring Mikeno (left) and Karisimbi (right) volcanoes peaking out behind the... [info]
(370 visti)
(370 visti)

Two adventure travelers watching the sunrise between Mikeno and Karisimbi volcano from the rim of Ny... [info]
(329 visti)
(329 visti)

View towards the west across Nyiragongo´s summit caldera in the morning of 8 June. (Photo: Ingrid Sm... [info]
(308 visti)
(308 visti)

Relatively clear view into Nyiragongo´s caldera with the central active lava lake and to its east-so... [info]
(556 visti)
(556 visti)

Panorama of Nyiragongo´s summit caldera in the early morning light of 8 June 2017, looking towards t... [info]
(295 visti)
(295 visti)

View onto the colourful layers of volcanic deposits that make up the inner walls of Nyiragongo´s sum... [info]
(290 visti)
(290 visti)

Dead shrubs are scattered between the lava flows and volcanic deposits on the southwest part of Nyir... [info]
(275 visti)
(275 visti)

8 June 2017 morning hike along Nyiragongo´s caldera rim towards the western part of the volcano´s su... [info]
(257 visti)
(257 visti)

View onto the active lava lake and the western inner caldera walls. The more or less horizontal volc... [info]
(385 visti)
(385 visti)

When there are no clouds resting on Nyiragongo´s summit and the volcanic gasses rise straight up one... [info]
(270 visti)
(270 visti)

The magma rising up from deep below Nyiragongo is rich in volcanic gasses which nearer the surface c... [info]
(248 visti)
(248 visti)

Locations where there is a steady rise of gas bubbles for a prolonged period of time will form inter... [info]
(217 visti)
(217 visti)

View onto the steep cliffs inside the souther part of Nyiragongo´s summit caldera. (Note few small h... [info]
(216 visti)
(216 visti)

Zig zag pattern of the cracked crust that forms on top of Nyiragongo´s lava lake through instant coo... [info]
(223 visti)
(223 visti)

A gas bubble breaks through the lava lake´s crust and explodes, scattering around drops of hot liqui... [info]
(215 visti)
(215 visti)

A few small lava fountains are exploding lava into the air, breaking through the rapidly formed thin... [info]
(221 visti)
(221 visti)

As the sun sets, the orange red glow of the lava lake is reflected in the gass clouds into different... [info]
(211 visti)
(211 visti)

The ghostly red glow and bright yellow fracture pattern and gas bubble explosions of the lava lake i... [info]
(241 visti)
(241 visti)

Nyiragongo´s lava lake and summit caldera in hues of pink and purple at dusk on 8 June 2017. (Photo:... [info]
(235 visti)
(235 visti)

Silhouette of Nyamuragira, the active shield volcano and neighbour of Nyiragongo. (Photo: Ingrid Sme... [info]
(444 visti)
(444 visti)

The volcanic peaks of Mikeno (right) and Karisimbi (left) as seen during the hike to the Virunga Nat... [info]
(355 visti)
(355 visti)

Mikeno volcano (left), Karisimbi volcano (right) and a cinder cone (centre right) in the warm evenin... [info]
(202 visti)
(202 visti)