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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

Volcanic activity has increased since the eruption began on the island-volcano  Kadovar, according to news from the Rabaul Volcano Observatory communicated through the press and social networks (we can regret the lack of direct information from the observatory).
The ash plume has become darker and bulky. The ash covers 50 to 60% of the island and ash falls over 10 km, on December 7 in a sector west / north-west, are confirmed by VAAC Darwin forecasts and satellite images. The aviation code is orange.

 

Kadovar - ash plume (crescent in the center of the image) / Nasa Worlview Eosdis and Volcanic ash advisory / VAAC Darwin - 06.12.2017
Kadovar - ash plume (crescent in the center of the image) / Nasa Worlview Eosdis and Volcanic ash advisory / VAAC Darwin - 06.12.2017

Kadovar - ash plume (crescent in the center of the image) / Nasa Worlview Eosdis and Volcanic ash advisory / VAAC Darwin - 06.12.2017

Topography of Schouten Islands, with Kadovar's position

Topography of Schouten Islands, with Kadovar's position

Kadovar - ash plume (direction WNW) / Nasa Worlview Eosdis and Volcanic ash advisory / VAAC Darwin - 07.12.2017
Kadovar - ash plume (direction WNW) / Nasa Worlview Eosdis and Volcanic ash advisory / VAAC Darwin - 07.12.2017

Kadovar - ash plume (direction WNW) / Nasa Worlview Eosdis and Volcanic ash advisory / VAAC Darwin - 07.12.2017

The evolution of this andesitic volcano, with relatively thick lavas, augurs a growth of the dome followed by collapses and pyroclastic flows, or a violent explosive eruptive phase. Given the steepness of the slopes, landslides are possible, with tsunami generation.


Sources: social media, which pass on information from the RVO

Sinabung - 06.01.2018 / 14h50 - photo Firdaus Surbakti via Beidar Sinabung

Sinabung - 06.01.2018 / 14h50 - photo Firdaus Surbakti via Beidar Sinabung

At Sinabung, dome growth continues, as well as explosions, reported by the PVMBG five in number on December 6, accompanied by ash plumes rising between 300 and 2,500 meters above the summit. Many earthquakes related to collapse are recorded.

Note: the episode of 14:44 WIB December 6, lasting 5.13 minutes, with a plume of ash emitted at a height of 2,000 meters drifting east / southeast.

Source: PVMBG, Mbah Rono and Beidar Sinabung

Sinabung - multiple ashventings and dome - photo Firdaus surbakti via Beidar Sinabung

Sinabung - multiple ashventings and dome - photo Firdaus surbakti via Beidar Sinabung

The Sakurajima presented this December 6th at 5:44 pm local eruption at the summit crater Minamidake, accompanied by a dark plume rising 900 meters above the crater.

Sources: webcams

Sakurajima - 06.01.2018 / 18h50 - 18h52 - JMA webcams

Sakurajima - 06.01.2018 / 18h50 - 18h52 - JMA webcams

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