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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
 Karymsky - explosive episode of 07.24.2021 - photo G. Volynets / kscnet.ru- IVS - kvert / via K. Bakanov

Karymsky - explosive episode of 07.24.2021 - photo G. Volynets / kscnet.ru- IVS - kvert / via K. Bakanov

Karymsky - Volcanic ash advisory of 07.28.2021 - Doc. VAAC Tokyo

Karymsky - Volcanic ash advisory of 07.28.2021 - Doc. VAAC Tokyo

In Karymsky / Kamchatka, moderate eruptive activity of the volcano continues. According to satellite data from KVERT, an ash emission continues continuously. The explosions send ash up to 1,600 m. a.s.l. and the ash plume extends 52 km east of the volcano.

Moderate eruptive activity of the volcano continues. Ash explosions up to 6 - 7 km altitude could occur at any time. The current activity could affect low-flying aircraft. The aviation code remains orange.

 

Sources: KVERT & VAAC Tokyo

Sinabung - ash plume from 07/28/2021 / 13h20 - photo Firdauss Surbakti  de Umbrella Village District

Sinabung - ash plume from 07/28/2021 / 13h20 - photo Firdauss Surbakti de Umbrella Village District

Sinabung - ash plume from 07/28/2021 / 1:25 p.m. WIB webcam PVMBG Magma Indonesia

Sinabung - ash plume from 07/28/2021 / 1:25 p.m. WIB webcam PVMBG Magma Indonesia

Sinabung - 07.28.2021 / around 1:25 p.m. - photo Magma Indonesia via Rizal

Sinabung - 07.28.2021 / around 1:25 p.m. - photo Magma Indonesia via Rizal

An eruptive episode occurred at Sinabung on July 28, 2021 at 1:20 p.m. WIB / 6:20 a.m. UTC, accompanied by a gray and thick ash plume observed at ± 4,500 m above the summit (± 6960 m above the level of the sea). This eruption was recorded on a seismograph with a maximum amplitude of 120 mm and a duration of 742 seconds.

The VONA went from orange to red on July 28 / 06h34Z.

The Sinabung remains in activity level 3 / siaga, with no-go zones of 3 to 5 km distance depending on the directions.

 

Source: Magma Indonesia

Ili Lewotolok - 07.28.2021 / 12:29 am - webcamPVMBG - Magma Indonesia

Ili Lewotolok - 07.28.2021 / 12:29 am - webcamPVMBG - Magma Indonesia

At Ili Lewotolok, the PVMBG reports for the day of July 27, a plume of color varying from white to black at a height of 80 to 400 meters above the summit.


Seismicity of July 27 is characterized by:
- 5 eruption earthquakes, with an amplitude of 7 to 23 mm and a duration of 17 to 38 seconds.
- 3 blast / emission earthquakes, with an amplitude of 4 to 8 mm and an earthquake duration of 16 to 28 seconds.
- a non-harmonic tremor episode, with an amplitude of 6 mm and an earthquake duration of 71 seconds.
- 2 deep volcanic earthquakes.
In activity level 3 / siaga and aviation code orange, it is recommended that communities around Mount Ili Lewotolok as well as visitors / climbers / tourists not engage in activities within a radius of 3 km from the summit / crater of Mount Ili Lewotolok.

On July 28, an eruptive episode occurred at 00:24 WITA with an ash plume observed at ± 1,000 m above the summit (± 2,423 m above sea level). This eruption was recorded on a seismograph with a maximum amplitude of 45 mm and a duration of 49 seconds.
Another episode followed at 07:22 WITA, accompanied by an ash plume observed at ± 800 m above the summit (± 2,223 m above sea level) recorded on a seismograph with a maximum amplitude of 34 mm and a duration of 29 seconds.

Source: PVMBG, Magma Indonesia

Fagradalsfjall - 27.07.2021 / 06:30 - webcam_langihryggur NV

Fagradalsfjall - 27.07.2021 / 06:30 - webcam_langihryggur NV

Fagradalsfjall - tremor at 07.28.2021 - Doc.Hraun.vedur

Fagradalsfjall - tremor at 07.28.2021 - Doc.Hraun.vedur

At Fagradallsfall, we note the partial collapse of a section of the internal wall of the crater of the active cone on July 27.

The periods of activity alternate with that of calm, as evidenced by the tremor.

Lava flows into Meradalur.

Each day, his surprise ... the volcano decides!

 

Sources: RUV, mbls, Almannavarnir, Visit Reykjanes

Fagradalsfjall - partial collapse of the inner crater wall on 07/27/2021 - video Visit Reykjanes

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