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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
Sakurajima - activity on the 17.09.2019 at 12h25-12h39 and at 18h57-19h06 - webcam JMA
Sakurajima - activity on the 17.09.2019 at 12h25-12h39 and at 18h57-19h06 - webcam JMA

Sakurajima - activity on the 17.09.2019 at 12h25-12h39 and at 18h57-19h06 - webcam JMA

At Sakurajima, explosive activity continues with many episodes. A random translation of the Japanese does not follow these ... some images of the JMA webcam give us an idea.

Two episodes, however, have to be noted: on 17 September at 17:27, which was accompanied by a plume of ash 1,000 meters above the Minamidake and caused fires.

On 18 September at 18:27 local time, the explosion was accompanied by a plume of ash 2,000 meters above the crater, dispersed to the south.

 

Sources: JMA, My Kagoshima / Twitter and VAAC Tokyo

  Sakurajima - activity on 18.09.2019 at 14:14-14h33 - webcam JMA

 Sakurajima - activity on 18.09.2019 at 14:14-14h33 - webcam JMA

Sakurajima - ash plume on 18.09.2019 at 10:48 local time - video Volcano YTG

In Kamchatka, Sheveluch continues its explosive-extrusive eruption; the dome continues to grow, marked by incandescence and pyroclastic flows of collapse. A plume of vapor and gas, containing some ashes, continues to be emitted.

 

Sources: KVERT & Sentinel / Copernicus

Sheveluch - Sentinel picture -2A L1C of 17.09.2019 - Doc. Copernicus - a click to enlarge

Sheveluch - Sentinel picture -2A L1C of 17.09.2019 - Doc. Copernicus - a click to enlarge

Sheveluch - 3D image Sentinel-3 - Doc. Google Earth / Maxar Technologies - one click to enlarge

Sheveluch - 3D image Sentinel-3 - Doc. Google Earth / Maxar Technologies - one click to enlarge

Good news about monitoring volcanoes:

On 16 September, Charles Balagizi / GVO announced the installation of a MultiGas portable station on the edge of the Nyiragongo crater, thanks to the collaboration of the USGS Volcanoes.

It should contribute to prevention ... a million and a half people are likely to be threatened by an eruption.

Nyiragongo - the newly installed multigas station - 15.09.2019 - Doc. Ch.Balagizi / Twitter

Nyiragongo - the newly installed multigas station - 15.09.2019 - Doc. Ch.Balagizi / Twitter

The Alaska Volcanoes Observatory (AVO) announces major upgrades to volcano monitoring equipment during the 2019 summer season.

Improvements were made to the following 13 volcanoes: Akutan, Augustine, Dutton, Gareloi, Tall Sitkin, Iliamna, Kanaga, Katmai, Korovin, Makushin, Okmok, Tanaga and Westdahl.

The new ground instrumentation, which includes seismometers, infrasound sensors and web cameras, greatly enhances AVO's ability to detect disorders, predict eruptive activity, and alert volcano hazards in a timely manner. 

Installation of new solar panels in July 2019 at Korovin / Alaska volcano by John Lyons / USGS-AVO and Taryn Lopez / UAFGI-AVO

Installation of new solar panels in July 2019 at Korovin / Alaska volcano by John Lyons / USGS-AVO and Taryn Lopez / UAFGI-AVO

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