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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

In Kamchatka, the Sheveluch expelled on 14 October two important plumes: the first in the morning rose to over 5,500 meters asl, the second in the day to 5,000 meters, before drifting toward the northeast over 200 km.
Dome growth continues, with night glow.

 

Sheveluch 15/10/2016 - dome and a plume of the day - photo Andrew Matseevsky / Volcanoes via FB
Sheveluch 15/10/2016 - dome and a plume of the day - photo Andrew Matseevsky / Volcanoes via FB

Sheveluch 15/10/2016 - dome and a plume of the day - photo Andrew Matseevsky / Volcanoes via FB

In Klyuchevskoy, explosive-effusive activity continues; lava flows marked the flanks of the volcano and on October 14, two important plumes were detected, amounting to 6,000 and 8,000 meters respectively.
The two volcanoes are orange alert aviation


Sources: KVERT & VONA

Klyuchevskoy - 14/10/2016 - Photo Y.Demyanchuk / KVERT
Klyuchevskoy - 14/10/2016 - Photo Y.Demyanchuk / KVERT

Klyuchevskoy - 14/10/2016 - Photo Y.Demyanchuk / KVERT

In Costa Rica, Turrialba maintains an important activity: the eruptive plume seen from the webcam of the Irazu has an average height of at least 1,000 meters above the crater (or 4.300 m asl); the tremor indicates an ongoing activity, increasing of amplitude with the highest ash expulsions. Winds to the SSE carry the ashes over Turrialba centro, Cervantes de Alvarado, Ujarrás, Paraíso, Las Virtudes, San Jerónimo de Cachí and Paraíso de Cartago.
Sulfur odors are perceived on Cipreses of Oreamuno, Desamparados, Siquirres, San Miguel de Santo Domingo de Heredia, Dulce Nombre de Cartago and Moravia.
 
In the evening, the intensity of the tremor decreased and remained at a low level.
 
Sources: Ovsicori & Conred

Turrialba on 14/10/2016 seen from the center of Turrialba - photo Lindsay Portuguez via RSN

Turrialba on 14/10/2016 seen from the center of Turrialba - photo Lindsay Portuguez via RSN

Turrialba - plume more than 1,000 meters above the crater - webcam picture Ovsicori / on Irazu

Turrialba - plume more than 1,000 meters above the crater - webcam picture Ovsicori / on Irazu

Vanuatu Geohazards Observatory increased on October 15 the level of volcanic alert of Yasur on Tanna island of 2 to 3. This level signifies a possible increased activity, with falls of bombs around the crater area to​​ the parking, and gas and ash affecting villages downwind.
The area A is off limits, and Zone B should be approached with caution. (See map)

Yasur -  risk areas map - Doc. Vanuatu Geohazards Observatory / 15.010.2016

Yasur -  risk areas map - Doc. Vanuatu Geohazards Observatory / 15.010.2016

On Ambrym, in volcanic alert level 2 / instability, the team of Geoff Mackley and Chris Horsley / Ultimate Volcano Expeditions reports Strong explosions in the lava lake in Marum, admitting they were too close to the crater during shooting.

Video : https://www.facebook.com/davison/videos/10154712823148825/

Activity of Sheveluch, Klyuchevskoy, Turrialba, Yasur and Marum.

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