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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
 Sakurajima - Sentinel 2 image from 01/31/2021 / 1:59 am via Mounts project

Sakurajima - Sentinel 2 image from 01/31/2021 / 1:59 am via Mounts project

Sakurajima - activity from 01/30/2021 / 12:42 JST - JMA webcam

Sakurajima - activity from 01/30/2021 / 12:42 JST - JMA webcam

In Sakurajima, eruptive activity continues, with explosions on January 25, 26, 28 and 30-31, accompanied by the emission of ash plumes. On January 31, we will remember an explosion with a white plume at 2,300 meters asl. At 7.20 am.

At Sakurajima, the supply and storage of magma in the underground depths of the Aira caldera (inner part of Kagoshima Bay) continues, with inflation observed by GNSS. The emission of volcanic gas (sulfur dioxide) remains high.

Therefore, the J.M.A. considers that the eruptive activity will continue to focus on the summit crater Minamidake.

 

Source: JMA & VAAC Tokyo

Sakurajima - plume at 1000 m high on 01.31.2021 / 07:33 am - JMA webcam

Sakurajima - plume at 1000 m high on 01.31.2021 / 07:33 am - JMA webcam

The update of the bulletins of the UWI-SRC on the activity of the Soufrière of St. Vincent is done with a delay of several days ... Without recent news, this suggests a continuous increase of the new dome.

The gas fumes continue, with damage to vegetation in the crater, but also outside it, visible on satellite images.

 

Source: Mounts project

Soufriere de St. Vincent - an area burned by acid rain, linked to the gas emission, is visible on the left of the Sentinel 2 image of 01.28.2021 / via Mounts project

Soufriere de St. Vincent - an area burned by acid rain, linked to the gas emission, is visible on the left of the Sentinel 2 image of 01.28.2021 / via Mounts project

In Papua New Guinea, Manam's activity continues, with emissions of steam and gas, towards the east of the volcano, on January 29 and 30, spotted by Sentinel-2 and Sentinel-5P.

 

Sources: Copernicus / via Adam platform

Manam - gas emission to the east zone on 29.01.2021 - Sentienl-2 3D image via Adam Platform

Manam - gas emission to the east zone on 29.01.2021 - Sentienl-2 3D image via Adam Platform

Manam - SO2 emissions towards the east of the volcano on 01.30.2021 - Sentinel-5P image via Adam Platform

Manam - SO2 emissions towards the east of the volcano on 01.30.2021 - Sentinel-5P image via Adam Platform

A slight eruptive activity continued at the south-eastern summit crater of Etna on the evening of January 30, 2021.

A strong glow (caused by the reflection of the incandescence in the gas plume) is observed at the East vents (right), and Strombolian activity, accompanied by ballistic projections at the "saddle vent" (center) .

 

Source: Boris Benhcke

Etna SEC - activity of the southeast and of the Saddle vents on 01.30.2021 - photo Boris Behncke

Etna SEC - activity of the southeast and of the Saddle vents on 01.30.2021 - photo Boris Behncke

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