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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
 Sheveluch - plume of ashes - archive footage Volkstat 2018

Sheveluch - plume of ashes - archive footage Volkstat 2018

Explosions generated an ash plume up to 7,000 meters asl. at Sheveluch on the morning of 27 September, which extended to the east of the volcano over more 30 km; ash emissions continue.

Moving the ashes to Alaska caused VAAC Tokyo's ash cloud monitoring to be transferred to VAAC Anchorage.

The aviation code is orange.

Source: KVERT

Sheveluch - Volcanis ash advisory 27.09.2019 - Doc. VAAC Tokyo

Sheveluch - Volcanis ash advisory 27.09.2019 - Doc. VAAC Tokyo

The INGV communicates that from 5:00 GMT an emission of ash is observable at the crater northeast of Etna. It is probably due to collapse phenomena and has rapidly diminished. The ashes disperse to a south sector.

This activity follows that of last week, characterized by explosive strombolian and effusive intracrateric activity at the crater of Voragine, coupled with sporadic ash emissions at the NEC; the other craters pursue an "ordinary" degassing.

ESA's Sentinel satellites analyzed sulfur dioxide emissions and thermal anomalies over the same period.

 

Sources: INGV & Sentinel via Copernicus.
 

Etna - ash emission by the NEC on 27.09.2019  - webcam INGV Catania

Etna - ash emission by the NEC on 27.09.2019 - webcam INGV Catania

Etna - SO2 plume, thanks to a combination of Sentnel 3 and Sentinel 5P images / 25.09.2019 - Doc. Copernicus

Etna - SO2 plume, thanks to a combination of Sentnel 3 and Sentinel 5P images / 25.09.2019 - Doc. Copernicus

Etna - thermal anomalies in this image Sentinel2 of 25.09.2019 - Doc. Copernicus - a click to enlarge

Etna - thermal anomalies in this image Sentinel2 of 25.09.2019 - Doc. Copernicus - a click to enlarge

Five years after the deadly groundwater eruption that marked Mt. Ontake on the Japanese island of Honshu, it is unfortunate that half of the municipalities near this active volcano still do not have a disaster plan.

An official ceremony pays tribute to the 58 dead and 5 missing from the eruption, while authorities have partially lifted the ban on access to the summit earlier this year, and allow climbs from July to mid-October. They focus on quick evacuation measures in the event of an eruption ... a good information of the climbers is essential, because many do not know that they climb a volcano, with all the dangers inherent to the sudden eruptions, without precursory signs.

Source: local media

 Ontake - plumes of ash from the deadly water eruption of 27.09.2014 - photo archives Kyodo news

 Ontake - plumes of ash from the deadly water eruption of 27.09.2014 - photo archives Kyodo news

The top of Ontake covered with ash from the eruption - photo 09.02014 Kyodo, Reuters

The top of Ontake covered with ash from the eruption - photo 09.02014 Kyodo, Reuters

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