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Earth of fire

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

Publié le par Bernard Duyck
Publié dans : #Actualités volcaniques
 Fuego - activity of 25.02.2017 view by drone - photo EmmaLiu31 / Twitter

Fuego - activity of 25.02.2017 view by drone - photo EmmaLiu31 / Twitter

The second  2017 eruption of Fuego lasted over only 13 hours ... "the activity of the volcano has returned to normal," said Conred's spokesman.
The plumes of ashes rose saturday morning to 5,000 meters asl, 1,240 meters above the summit. The ashes affected the communities of El Rodeo, El Zapote, La Reunión, Alotenango and San Vicente Pacaya, to the north and east of the volcano.
Three lava flows in the Santa Teresa, Las Lajas and Ceniza barrancos, respectively of 1,200, 1,300 and 1,600 meters long, were fed by lava fountains up to 300 meters in height.


Sources: Insivumeh & Conred

Plume of the Fuego the 25.02.2017 - photo Hugo Velasquez via Chematierra

Plume of the Fuego the 25.02.2017 - photo Hugo Velasquez via Chematierra

The ashes of the Fuego on Amatitlan - picture 25.02.2017 fredy md. / Via Clima Guatemala

The ashes of the Fuego on Amatitlan - picture 25.02.2017 fredy md. / Via Clima Guatemala

Ashes scatter map on 25.02.2017 - and the same day tremor at 1 pm / Insivumeh - one click to enlargeAshes scatter map on 25.02.2017 - and the same day tremor at 1 pm / Insivumeh - one click to enlarge

Ashes scatter map on 25.02.2017 - and the same day tremor at 1 pm / Insivumeh - one click to enlarge

We are awaiting news of the analyzes carried out by the COD / Deep Carbon Observatory teams on the volcanoes of Costa Rica. In Poas, in addition to the usual measurements, the temperature of the laguna caliente 38 ° C, pH 0.85, they look for data on extremophiles capable of living in this extreme environment, and the way they are affected by type phreatic eruptions that mark the acid lake.
 
Source: #subductCR / Twitter.

Descent into the Poas Crater - photo 26.02.2017 Kayla Iacovino / SubductCR

Descent into the Poas Crater - photo 26.02.2017 Kayla Iacovino / SubductCR

Poas - sampling of gases - photo 26.02.2017 Kayla Iacovino / SubductCR

Poas - sampling of gases - photo 26.02.2017 Kayla Iacovino / SubductCR

Poas - a view of the acid lake, inaccessible to the volcanophiles - click to enlarge - photo Donato Giovanelli.

Poas - a view of the acid lake, inaccessible to the volcanophiles - click to enlarge - photo Donato Giovanelli.

No seismicity was recorded during the day under the summit of Piton de la Fournaise.
Since the night of last Friday, the volcanic tremor (indicator of surface eruptive intensity) is slightly increasing; The inflation of the volcano in its summit area continues. A slight inflation at the base of the cone (bottom of the enclosure) is now perceptible. On the other hand, outside the enclosure, no deformation is currently observable.
Visual observations from Piton de Bert during the night from Saturday to Sunday show a few projections at the active vent, a lava flow mainly in lava tube, and rare outlets for lava at level of the flow. Some skylights (opening in the roof of a lava tunnel) were also observable.
 
Source: OVPF - IPGP

The active cone at La Fournaise - photo 25.02.2017 DroneCopters / Jonathan Payet

The active cone at La Fournaise - photo 25.02.2017 DroneCopters / Jonathan Payet

Evolution of the RSAM (volcanic and volcanic eruption indicator) between January 31st and Sunday February 26th (18h00 local time) on the seismic station of Château Fort, located on the southern flank of the volcano.- doc. OVPF - IPGP

Evolution of the RSAM (volcanic and volcanic eruption indicator) between January 31st and Sunday February 26th (18h00 local time) on the seismic station of Château Fort, located on the southern flank of the volcano.- doc. OVPF - IPGP

In Sinabung, the activity continues with explosions accompanied by impressive plumes.

Sinabung - ash plume of 26.02.2017 / 17h48 - photo F.Surbakti / Beidar Sinabung

Sinabung - ash plume of 26.02.2017 / 17h48 - photo F.Surbakti / Beidar Sinabung

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