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Earth of fire

Actualité volcanique, Articles de fond sur étude de volcan, tectonique, récits et photos de voyage

Publié le par Bernard Duyck
Publié dans : #volcanic activity
Fagradalsfjall - Hraunáin waterfalls m.a. crossing the hiking trail towards the Nátthaga Valley. - Image VF 06/14/2021

Fagradalsfjall - Hraunáin waterfalls m.a. crossing the hiking trail towards the Nátthaga Valley. - Image VF 06/14/2021

A mighty river of lava now flows into Nátthagi from Geldingadalur / Fagradalsfjall eruption.

A large amount of fluid lava now rushes down the steep slope and collects in a pond at the bottom of the valley below. A large amount of lava flowed into Nátthaga today.

Fagradalsfjall eruption - flow in the Nátthaga valley - photo © Thierry Sluys 06/14/2021 - one click to enlarge the thubnails

Fagradalsfjall eruption - flow in the Nátthaga valley - photo © Thierry Sluys 06/14/2021 - one click to enlarge the thubnails

Fagradalsfjall eruption - supply of the flow in the Nátthaga valley by lava tunnels - photod © Thierry Sluys 06.14.2021
Fagradalsfjall eruption - supply of the flow in the Nátthaga valley by lava tunnels - photod © Thierry Sluys 06.14.2021

Fagradalsfjall eruption - supply of the flow in the Nátthaga valley by lava tunnels - photod © Thierry Sluys 06.14.2021

Fagradalsfjall eruption - flow front in the Nátthaga valley - photo © Thierry Sluys 14.06.2021

Fagradalsfjall eruption - flow front in the Nátthaga valley - photo © Thierry Sluys 14.06.2021

Our friend Thierry Sluys shared photos of his day of June 14, during which he climbed from the flow front in the Nátthaga valley towards the belvedere which allows to see the emission cone.

He encountered a bulldozer erecting a dike which should guide the lava towards the sea, prevent it from heading towards Nátthagakrik, and not threaten Grindavík and Svartsengi.

An excavator draws another path to facilitate new access for hikers to the upper part of the lava fields.

 

Sources: VF and Thierry Sluys (thank you for his photos and comments)

Fagradalsfjall eruption - the active cone which closes - photo © Thierry Sluys 06/14/2021

Fagradalsfjall eruption - the active cone which closes - photo © Thierry Sluys 06/14/2021

Fagradalsfjall eruption - works to channel the lava in the Nátthaga valley - photo © Thierry Sluys 14.06.2021

Fagradalsfjall eruption - works to channel the lava in the Nátthaga valley - photo © Thierry Sluys 14.06.2021

A visit to the Nyiragongo crater was carried out this Friday, June 11 by experts, departing from the OVG, accompanied by armed rangers from the Virungas Park.

Their mission: " to use drones and camera systems to assess landslides and see if the crater is collapsing", explains Christopher Horsley, technical assistant at the OVG. {...} " The arrival at the top offers a bird's eye view of the crater, in the process of collapsing on itself, in a low rumble, punctuated by explosions. At nightfall, glowing lava residue is visible at the bottom of the crater ".

Nyiragongo summit - view of the glowing crater during the night of 06.12.2021 - Photo by Arsène T. SADIKI via Ch.Balagizi

Nyiragongo summit - view of the glowing crater during the night of 06.12.2021 - Photo by Arsène T. SADIKI via Ch.Balagizi

North Kivu is a volcanologically active area, with two giants: the Nyiragnogo, a stratovolcano housing a lava lake, and the Nyamuragira, a shield volcano.

A red glow also appears in the distance to the north: the second volcano, Nyamuragira, is active. A new lava lake appears to be stable in its caldera.

Many other volcanoes are present in the Parc des Virungas.

 

Source: RTBF / extract from AFP news

Nyamuragira - hot spot in the caldera - image Sentinel-2 bands 12,11,4 from 06.11.2021 - one click to enlarge

Nyamuragira - hot spot in the caldera - image Sentinel-2 bands 12,11,4 from 06.11.2021 - one click to enlarge

Nyamuragira - Thermal anomalies at 06.13.2021 / 11am - Doc. Mirova MODIS_Latest10NTI

Nyamuragira - Thermal anomalies at 06.13.2021 / 11am - Doc. Mirova MODIS_Latest10NTI

This image taken by the HMG Guardian on June 12 shows the new look of La Soufrière crater, SVG.

Professor Robertson captioned the photo so we can see the 1979 crater rim, the 2021 new explosion crater rim, and the lake. There are several hydrothermal vents and these are responsible for the vapor that can be seen on most days.

The alert is still in Orange and access to the volcano is still prohibited for the moment.

 

Source: UWI-SRC

Soufriere de St. Vincent - the crater 2021 - photo HMG Guardian & Prof. Robertson / UWI / 06.12.2021

Soufriere de St. Vincent - the crater 2021 - photo HMG Guardian & Prof. Robertson / UWI / 06.12.2021

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