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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
Semisopochnoi - Sentinel-2 image 2018.09 - Waythomas, chris, via AVO

Semisopochnoi - Sentinel-2 image 2018.09 - Waythomas, chris, via AVO

AVO reports that the increased seismicity of Semisopochnoi is in transition to continuous tremor, with small explosions. Satellite images show a robust plume of steam and minor ash deposits in the vicinity of the northern edge of the Cerebus crater.

The volcanic alert level is Watch, and the aviation code is orange.

 

Source: AVO

Sabancaya - activity summary between 9 and 15 February 2020 - Doc. I.G.Peru

Sabancaya - activity summary between 9 and 15 February 2020 - Doc. I.G.Peru

The Geophysical Institute of Peru (IGP) reports that the eruptive activity of the Sabancaya volcano remains at moderate levels

Between March 9 and 15, the IGP recorded and analyzed the occurrence of approximately 1,384 earthquakes of volcanic origin, associated with the circulation of fluids (magma, gas, etc.) inside the volcano. In addition, 24 daily explosions of medium to low intensity were recorded on average, accompanied by columns of gas and ash up to 3.5 km high above the summit of the volcano, which were mainly dispersed towards the sectors south, southeast and northeast of Sabancaya.

Monitoring the deformation of the volcanic structure records significant anomalies

Satellite surveillance enabled the presence of 3 thermal anomalies with values ​​between 11 MW and 14 MW, associated with the presence of a body of delava. inside the crater of the volcano.

The volcanic alert level remains orange.

 

Sources: I.G. Peru, Mirova and Tropomi

Sabancaya - emissions of sulfur dioxide on 16.03.2020 - Doc. Sentinel-5 P Tropomi SO2 - DLR / BIRA / ESA

Sabancaya - emissions of sulfur dioxide on 16.03.2020 - Doc. Sentinel-5 P Tropomi SO2 - DLR / BIRA / ESA

The Geophysical Institute of Peru (IGP) reports that the eruptive activity of the Ubinas volcano remains at low levels.

Sporadic emissions of bluish gases (of magmatic origin) and water vapor are recorded. MIROVA satellite surveillance did not record any thermal anomalies.

The IGP recommends reducing the level of volcanic alert from orange to yellow

 

Sources: I.G. Peru and Mirova

Ubinas - activity summary between 9 and 15 February 2020 - Doc. I.G.Peru

Ubinas - activity summary between 9 and 15 February 2020 - Doc. I.G.Peru

Etna's activity remains within last week's standards, with an increasing thermal anomaly spotted by Mirova, with 246 MW on March 17 at 01:25.

 

Sources: Sentinel-2 and Mirova

Etna - thermal anomalies on 17.03.2020 / 01h25 - Doc. Mirova_MODIS_VRP

Etna - thermal anomalies on 17.03.2020 / 01h25 - Doc. Mirova_MODIS_VRP

Etna - Sentinel-2 L1C image on 2020-03-13 bands 12,11,4 - one click to enlarge

Etna - Sentinel-2 L1C image on 2020-03-13 bands 12,11,4 - one click to enlarge

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