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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
Turrialba - small eruption of 23.03.2018 and rapid change of colors of the plume, suggesting a stripping of the conduit - RSN webcam photos
Turrialba - small eruption of 23.03.2018 and rapid change of colors of the plume, suggesting a stripping of the conduit - RSN webcam photos

Turrialba - small eruption of 23.03.2018 and rapid change of colors of the plume, suggesting a stripping of the conduit - RSN webcam photos

In Turrialba, a small eruption around 6am loc. on March 23, 2018, lasting over one minute, generated an ash plume 100-200 meters above the summit, according to the sources. The plume quickly cleared, and throughout the day low emissions of steam and gas followed.

Sources: Ovsiori and RSN

Turrialba - emissions of gas and steam continued during the day - webcam 23.03.2018 / 8:40 / Ovsicori

Turrialba - emissions of gas and steam continued during the day - webcam 23.03.2018 / 8:40 / Ovsicori

In Guatemala, two volcanoes, Santa Maria and Agua, are the site of forest fires during the previous days. These fires are difficult to fight, being located on steep slopes.

The Municipality of Quetzltenango reports that on March 24 the Santa Maria forest fire is under control.

Sources: Stereo 100 Noticias - Nasa satellite Terra
 

 Forest fires on the slopes of the volcano Agua - 23.03.2018 - photo Carlos Marroquin

Forest fires on the slopes of the volcano Agua - 23.03.2018 - photo Carlos Marroquin

Wildfires on the Santa Maria - 22.03.2018 - photo Stereo 100 Noticias

Wildfires on the Santa Maria - 22.03.2018 - photo Stereo 100 Noticias

The smoke plume of the Santa Maria forest fires, seen by the NASA Terra Modis satellite on 22.03.2018

The smoke plume of the Santa Maria forest fires, seen by the NASA Terra Modis satellite on 22.03.2018

Small resumption of activity at Mayon, alert level 3, with two pyroclastic flows from lava flow collapse in Miisi drainage on March 22 at 10:39 and 21:33; they moved 4-5 km and generated clouds of brown ash.

A total of 35 rockfall episodes were recorded by the seismometers; the flow of carbon dioxide is 1,532 tons / day on March 22, and a slight inflation of the volcano's lower slopes, which began on March 11, is still recorded.

Source: Phivolcs

Mayon - photo Tomas Tam / pBase

Mayon - photo Tomas Tam / pBase

The Satsuma Iojima / Caldeira Kikai, whose alert level had been raised to 2 on March 19 by the JMA, will be subject to field control on March 24 and 25.

Volcanic earthquakes continue after a slight decline on March 20 and 21; on March 22, 48 volcanic earthquakes were recorded between 0 and 15:00 local time, and this activity continue.

Since March 23, plumes of white gas and vapor have been observed above the crater, signs of  tensioning of the hydrothermal system.

Source: Hazard lab., Via Shérine France

The Satsuma Iojima - archive 11.02.2012 - photo Database of the Maritime and Submarine Volcanoes

The Satsuma Iojima - archive 11.02.2012 - photo Database of the Maritime and Submarine Volcanoes

On Kadovar / Papua New Guinea, the eruption continues at a slow rythm, the thermal radiation of the lava extrusion being visible by the Sentinel 2 satellite on March 22, 2018.

Displaced persons are taken care of on the main island by the authorities.

Source: Sentinel 2

 Kadovar - image Sentinel 2 SWIR 22.03.2018 - thermal radiation of the new dome and modified coast line
 Kadovar - image Sentinel 2 SWIR 22.03.2018 - thermal radiation of the new dome and modified coast line

 Kadovar - image Sentinel 2 SWIR 22.03.2018 - thermal radiation of the new dome and modified coast line

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