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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
Bezymianny - 28.05.2022 / 08:02 - KB GS RAS webcam - click to enlarge

Bezymianny - 28.05.2022 / 08:02 - KB GS RAS webcam - click to enlarge

Bezymianny - 28.05.2022 / 09:03 - KB GS RAS webcam - click to enlarge

Bezymianny - 28.05.2022 / 09:03 - KB GS RAS webcam - click to enlarge

Strong explosive eruption of the Bezymianny volcano on May 28, 2022. The explosions sent ash up to 10-12 km a.s.l., and the ash plume extended southeast from the volcano.

Reported 20 km from the volcano at 07:26Z, it extended over 365 km at an altitude of 15,000 meters at 08:15Z.

Mirova reports moderate thermal anomalies of 13 to 33 MW on May 28, 2022.

The explosive eruption of the volcano continues. Ongoing activity could affect international and low-flying aircraft.

The aviation code changed from orange to red today.

 

At 10:07Z, the Kvert announces that the paroxysmal phase of the explosive eruption is over, but the eruptive activity of the volcano with evacuation of ash up to 5 km altitude. keep on going. Two ash plumes are observed in satellite images. One of the ash plumes on the height of 9.5 km a.s.l. extends 212 km southeast of the volcano; and the other 650 km southeast of the volcano.

The aviation code changes back to orange.

At 22:19Z, the gas-steam plume with some ash extends 45 km southeast of the volcano; but the approximately 1.635 long large ash cloud also continues to move southeast from the volcano.

The explosive eruption of the volcano continues.

 

Sources: KVERT, Mirova and VAAC Tokyo

Bezymianny - 28.05.2022 / 08:14 - Doc. IVS/ KVERT & Weathernews Inc. - click to enlarge

Bezymianny - 28.05.2022 / 08:14 - Doc. IVS/ KVERT & Weathernews Inc. - click to enlarge

Bezymianny - moderate thermal anomaly on 05.28.2022 / 02:20 - Doc. Mirova_MODIS_VRP

Bezymianny - moderate thermal anomaly on 05.28.2022 / 02:20 - Doc. Mirova_MODIS_VRP

Bezymianny - volcanic ash advisory au 28.05.2022 / 0904Z & 2301Z - Doc .VAAC Tokyo - one click to enlargeBezymianny - volcanic ash advisory au 28.05.2022 / 0904Z & 2301Z - Doc .VAAC Tokyo - one click to enlarge

Bezymianny - volcanic ash advisory au 28.05.2022 / 0904Z & 2301Z - Doc .VAAC Tokyo - one click to enlarge

At Semeru, eruptive activity continues.

The seismicity of May 28, 2022 is characterized by:

- 68 eruption earthquakes, with an amplitude of 10-22 mm and an earthquake duration of 50-180 seconds.
- 10 avalanche earthquakes with an amplitude of 1 to 6 mm and an earthquake duration of 35 to 65 seconds.
- 12 emission earthquakes, with an amplitude of 2 to 8 mm and an earthquake duration of 30 to 110 seconds.
- 2 distant tectonic earthquakes.

 

This May 29, at 01:04Z, a plume of 500 m. above the spmmet is mentioned by an observer on the ground.

The activity level remains at 3/siaga, with a recommendation of no activity in the southeastern sector along Besuk Kobokan, up to 13 km from the summit (the center of the eruption). Beyond this distance, the community does not conduct activities within 500 meters of the bank (river edge) along Besuk Kobokan due to the potential for expansion of hot clouds and lava flows. lava up to a distance of 17 km from the summit.

 

Source: PVMBG, Magma Indonesia

Semeru - Sentinel-2 bands tue color + IR image from 25.05.2022 - Copernicus Sentinel Hub

Semeru - Sentinel-2 bands tue color + IR image from 25.05.2022 - Copernicus Sentinel Hub

On 2022-05-28 at 1:25 am local time, an eruption is recorded at the level of the Rincón de la Vieja volcano by infrasound, the height reached by the column is unknown due to the visibility conditions of the site.

Strong degassing marks the crater.
At the time of this report, the winds are blowing westerly.
He continues to show frequent small eruptions.

 

Source: Ovsicori

Rincón de la Vieja - 05.28.2022 / 07:06 - significant degassing - Ovsicori webcam

Rincón de la Vieja - 05.28.2022 / 07:06 - significant degassing - Ovsicori webcam

Following the catastrophic fire of Stromboli on May 25 and 26, 2022, in order to ensure the safety and security of hikers, the volcanological and alpine guides present in the area are forced to suspend their excursions.

The competent institutions and organizations concerned are asked to intervene with the greatest urgency for the restoration and securing of the territory and the trails.

Given the state of the slopes without vegetation, it is necessary to provide for the construction of paths that can serve as escape routes and fire lines.
Fundamental interventions in respect of public safety have already been requested at other times by the Volcanological Guides, but never taken into consideration.

Source: Eolie news

Stromboli - 28.05.2022 - Doc. via Marco Orto Ricciari / photo Carlo Lanza

Stromboli - 28.05.2022 - Doc. via Marco Orto Ricciari / photo Carlo Lanza

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