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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
 Pacaya - lava flow of 04.27.2020 - Lansat image 8 bands 7,6,2 - Doc. Insivumeh / USGS

Pacaya - lava flow of 04.27.2020 - Lansat image 8 bands 7,6,2 - Doc. Insivumeh / USGS

 Pacaya - lava flow, 250 meters long, on April 27, 2020 - image Lansat 8 bands 7,6,2 - Doc. Insivumeh / USGS

Pacaya - lava flow, 250 meters long, on April 27, 2020 - image Lansat 8 bands 7,6,2 - Doc. Insivumeh / USGS

In Guatemala, the Pacaya has shown significant seismicity since April 27 during the night, recorded by the PCG and PCG 5 stations. It was caused by the opening of a crack on the northeast flank of the volcano , according to Insivumeh; it emanates only gases.

A lava flow extends to the southwest, and has extended for 400 meters from the MacKenney crater. Simultaneously, Strombolian explosions are accompanied by incandescent ejections a hundred meters high.

The ban on climbing for guides and tourists is recalled by the Government of Guatemala.

 

Source: Insivumeh & the Government of Guatemala.

Pacaya - thermal anomalies on 04.28.2020 / 7:35 p.m. - Mirova_MODIS_VRP

Pacaya - thermal anomalies on 04.28.2020 / 7:35 p.m. - Mirova_MODIS_VRP

Pacaya - lava flow on 04.28.2020 with FLIR camera - doc. Insivumeh

Pacaya - lava flow on 04.28.2020 with FLIR camera - doc. Insivumeh

On April 27, a new hydrothermal eruptive episode marked the Rincon de La Vieja at 5:20 pm. It is characterized by a duration of 5 minutes and a plume reaching 1,000 meters above the crater.

New episode on April 28 at 9:19 p.m. local, lasting 1 minute, unable to determine the height of the plume, due to lack of visibility

 

Source: Ovsicori

 Rincon de La Vieja Crater - photo © Bernhard Edmaier, via “Bilder von der Erde” [Images of the Earth]

Rincon de La Vieja Crater - photo © Bernhard Edmaier, via “Bilder von der Erde” [Images of the Earth]

The activity continues at the Shindake crater of Kuchinoerabujima, with an eruption that occurred at 11:05 a.m. on April 29, characterized by a plume of ash and gas 1,000 meters above the crater. The plume flows north, then northeast.

 

Sources: NHK and JMA

Kuchinoerabujima - 04.29.2020 / 11.30 a.m. local - via NHK

Kuchinoerabujima - 04.29.2020 / 11.30 a.m. local - via NHK

2020.04.29  11h30  locale Kuchinoerabujima  - Doc. JMA

2020.04.29 11h30 locale Kuchinoerabujima - Doc. JMA

The Steamboat Geyser, in the Norris basin at Yellowstone N.P., erupted in water on April 27 from 4:29 p.m. to 4:39 p.m. It is the third eruption for the month of April 2020 and the twelfth manifestation in the course of this beginning of the year.

It seems that this geyser is in a phase of more frequent watery eruptions, as it had in the 60s and early 80s. But this time, because of the Covid-19, its activity did not have spectators.

These eruptions have no implications for future volcanic activity at Yellowstone, but are part of normal geyser activity, even if it is erratic.

 

Source: Geysertimes, org - link

Steamboat Geyser / Norris geyser basin - photo archive JAMES ST. JOHN via attribution 2.0 generic (CC BY 2.0)

Steamboat Geyser / Norris geyser basin - photo archive JAMES ST. JOHN via attribution 2.0 generic (CC BY 2.0)

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