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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 : #Actualités volcaniques
Rincon de La Vieja - 29.09.2017 / 9h - 9h04 -photos Ovsicori
Rincon de La Vieja - 29.09.2017 / 9h - 9h04 -photos Ovsicori

Rincon de La Vieja - 29.09.2017 / 9h - 9h04 -photos Ovsicori

The Rincon de La Vieja, Costa Rica, presented a possible eruption of phreatomagmatic type on 29.09.2017 at 8.58 local; qualified as small to moderate, it was powerful enough to generate small lahars on the upper part of the building. A white plume has developed up to 1,000 meters above the volcano.
 
Source: Ovsicori / Geoffroy Avard, responsible for the volcanic vigilance program.

Rincon de La Vieja - 29.09.2017 - in this picture, we see the lahars generated by the explosion on the top of the building - photo Blas Enrique Sánchez, Geologo Comisión Nacional de Emergencias

Rincon de La Vieja - 29.09.2017 - in this picture, we see the lahars generated by the explosion on the top of the building - photo Blas Enrique Sánchez, Geologo Comisión Nacional de Emergencias

The Gunung Agung - archive photo © Thierry Sluys.- a click to enlarge

The Gunung Agung - archive photo © Thierry Sluys.- a click to enlarge

A helicopter flight over the Agung on 29 September did not reveal any sign of eruption.
The satellites have detected new steam emissions, and heat zones that have spread over the past week; De visu, clouds of steam are observed at 50-200 meters above the crater occasionally, but more frequent than before ... this confirmed by the ascent of three people to the crater, where we see fumaroles coming out of several points. There will be no discussion of braving the authorities' ban, as the behavior of the Balinese is different in a "religious context", but should not encourage observers to imitate them.

Agung - fumerolles in the crater on 29.09.2017 - photo Mangku Mokoh

Agung - fumerolles in the crater on 29.09.2017 - photo Mangku Mokoh

Magma Indonesia notes that after the M4.2 earthquake on September 26, 2017 / 16:27 local time, a large cloud of steam was emitted up to about 500 meters above the summit. The largest volcanic earthquake during this crisis, M4.3 on September 27 at 13:12 local, was felt in the areas of Denpasar and Kuta; the other earthquakes are felt in the areas surrounding Agung and Batur.
As long as you respect the restricted areas, travel to Bali remains safe for the moment.


Source: Magma Indonesia.

Ambae - these satellite photos taken on August 19 and September 29, 2017 show the morphological changes of the cone of Manaro Voui - photo via Twitter @ planetlabs

Ambae - these satellite photos taken on August 19 and September 29, 2017 show the morphological changes of the cone of Manaro Voui - photo via Twitter @ planetlabs

Some satellite images of the eruption on Ambae show the morphological changes of the island in Lake Manaro Voui.

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