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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

The explosive activity of the Karymsky volcano has resumed.

Ash explosions from the volcano up to 6,000 -7,000 m above sea level began at around 8:45 p.m. UTC on December 9. The ash clouds drift north-west of the volcano for 60 km.

A moderate explosive activity continues; the aviation code has changed from yellow to orange.

 

Sources: KVERT & VAAC Tokyo

Karymsky - explosion of 21.10.2020 - photo A. Belousov via Volkstat archives

Karymsky - explosion of 21.10.2020 - photo A. Belousov via Volkstat archives

Karymsky - Volcanis ash advisory as of 12.10.2020 - Doc. VAAC Tokyo

Karymsky - Volcanis ash advisory as of 12.10.2020 - Doc. VAAC Tokyo

In Papua New Guinea, Manam still shows gas emissions on December 5 and 10, respectively to the south-southeast and west.

VAAC Darwin reported an ash emission at an altitude of 2,400 meters, drifting southwest on December 6.

 

Sources: VAAC Tokyo & Sentinel-2

Manam - degassing plume on 05.12.2020 -image Sentinel-2 L1C bands 12,11,4 - one click to enlarge

Manam - degassing plume on 05.12.2020 -image Sentinel-2 L1C bands 12,11,4 - one click to enlarge

Manam - degassing plume on 12.10.2020 -image Sentinel-2 L1C bands 12,11,4 - one click to enlarge

Manam - degassing plume on 12.10.2020 -image Sentinel-2 L1C bands 12,11,4 - one click to enlarge

In Chile, the reconnaissance overflight on December 9 shows that the lava lake of Villarica, about 10 to 15 meters in diameter, is semi-covered by a solidified floating crust.

A very weak incandescence is visible, but only by infrared camera.

Volcanic technical alert remains in Amarilla

 

Sources: POVI & Sernageomin

Villarica - the lava lake during the reconnaissance flight on 09.12.2020 - photo POVI

Villarica - the lava lake during the reconnaissance flight on 09.12.2020 - photo POVI

Villarica - Calendar of explosions on 05.12.2020 - Doc. POVI - one click to enlarge

Villarica - Calendar of explosions on 05.12.2020 - Doc. POVI - one click to enlarge

In Sinabung, on the island of Sumatra, a white plume is observed, of a moderate height about 50-200 meters from the summit.

At the seismicity level, on December 9, 2020, it was recorded:

- 85 collapse / avalanche earthquakes

- 17 low frequency earthquakes

- 13 hybrid / multiphase earthquakes

- 2 distant tectonic earthquakes

The activity level remains at 3 / siaga, with a recommendation not to carry out activities in the villages that have been relocated, as well as within a radial radius of 3 km from the summit of G. Sinabung, and a sector radius of 5 km for the south-eastern sector and 4 km for the east-north sector.

 

Sources: PVMBG & Firdaus Surbakti / Beidar Sinabung

Sinabung - photo F. Surbakti 08.12.2020 / 08:50 WIB / via Beidar Sinabung

Sinabung - photo F. Surbakti 08.12.2020 / 08:50 WIB / via Beidar Sinabung

The impressive Sinabung dome on 08.12.2020 - photo Firdaus Surbakti / Beidar Sinabung

The impressive Sinabung dome on 08.12.2020 - photo Firdaus Surbakti / Beidar Sinabung

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