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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
La Palma cumbre Vieja - lava flow after partial collapse of the cone - photo Raúl Pérez / IGME 10.09.2021 - one click to enlarge

La Palma cumbre Vieja - lava flow after partial collapse of the cone - photo Raúl Pérez / IGME 10.09.2021 - one click to enlarge

The north face of the eruptive cone of the volcano of La Palma - still without an official name - collapsed in the early morning of Saturday 0ocober 09th, releasing a flow of lava that carries very large blocks.

The new lava flow from the La Palma volcano moves unstoppably through the Camino de La Vinagrera and generates destruction in its path, making it difficult for scientists to travel in the area, said the Volcanological Institute of the Canary Islands (Involcan ) this Saturday !

The lava flow advanced through the industrial area of ​​Callejón de la Gata in Los Llanos de Aridane. It raises concerns for the Pevolca. It is a large mass of lava that has already devastated a small number of houses.

La Palma / Cumbre Vieja - Plume of ash and gas on 09,10,2021 - photo from the video by Victor Melo / Volcanes de Canarias

La Palma / Cumbre Vieja - Plume of ash and gas on 09,10,2021 - photo from the video by Victor Melo / Volcanes de Canarias

La Palma / Cumbre Vieja - progress of casting on 08.10.2021 - Doc. Copernicus EMS

La Palma / Cumbre Vieja - progress of casting on 08.10.2021 - Doc. Copernicus EMS

LaPalma - thermal anomalies at 10.10.2021 / 03:35 - Doc.Mirova_MODIS - one click to enlargeLaPalma - thermal anomalies at 10.10.2021 / 03:35 - Doc.Mirova_MODIS - one click to enlarge

LaPalma - thermal anomalies at 10.10.2021 / 03:35 - Doc.Mirova_MODIS - one click to enlarge

Víctor Melo, from the Volcanes de Canarias association, which is there, reports explosions and lava fountains less vigorous than yesterday, but more ash emissions. The dense ash plume rises for several kilometers and slowly drifts to the southeast.

The volcano remains on three active vents.

The lava now covers 497 ha., The maximum width of its front remains at 1,250 meters, and the delta part in the ocean measures 32 acres. The number of buildings affected was estimated at 1,186.

 

Sources: IGNes, Involcan, IGME, Volcanes de Canarias (video extract), Copernicus EMS

LaPalma / Cumbre Vieja - ash plume and gas seen from the N.P. of the Taburiente caldera, on 09.10.2021 - IGME photo

LaPalma / Cumbre Vieja - ash plume and gas seen from the N.P. of the Taburiente caldera, on 09.10.2021 - IGME photo

The monitoring stations installed near the Nevados de Chillan Volcanic Complex recorded on Saturday, October 9 at 07:06 local time, an earthquake associated with the dynamics of fluids inside the volcanic system (LP earthquake).

A plume of gas and ash rose 240 meters above the point of emission on October 9 at 10:06 UTC, lying in a northwesterly direction.

The alert remains in Amarilla, the activity remaining similar to the previous days.

 

Source: Sernageomin

Nevados de Chillan - 09.10.2021 / 10:06 UTC - photo Sernageomin

Nevados de Chillan - 09.10.2021 / 10:06 UTC - photo Sernageomin

A magnitude 3 earthquake was measured about 7 kilometers northwest of Öskjuvatn at 8:23 a.m. this morning. The earthquake occurred at a depth of about 2.6 kilometers.

This is the biggest earthquake that has occurred in the Askja region in some time. The earthquake occurred at a depth similar to that of the magma intrusions, and IMO monitoring is strict, although these earthquakes are not exceptional.

 

Source: IMO

Vatnajökull - Askja (north of the glacier) - earthquakes at 09.10.2021 / 15:40 - Doc. IMO
Vatnajökull - Askja (north of the glacier) - earthquakes at 09.10.2021 / 15:40 - Doc. IMO
Vatnajökull - Askja (north of the glacier) - earthquakes at 09.10.2021 / 15:40 - Doc. IMO

Vatnajökull - Askja (north of the glacier) - earthquakes at 09.10.2021 / 15:40 - Doc. IMO

Askja - a 4-5 km diameter lake, Öskjuvatn, filled the caldera in 1875 - 2021 photo Dave MacGarvie

Askja - a 4-5 km diameter lake, Öskjuvatn, filled the caldera in 1875 - 2021 photo Dave MacGarvie

Since the end of summer 2021, an increase in fumarolic activity and seismic activity has been observed at the La Fossa crater de Vulcano (Aeolian Islands). For this reason, the Italian Ministry of Civil Protection has raised the alert status for this volcano from green (volcano in a state of equilibrium) to yellow (volcano in a state of potential imbalance). During the first days of October 2021, Vulcano's gas emissions have been quite remarkable, due to a combination of increased gas production, atmospheric humidity and no wind. (see articles from previous days)

647 / 5000 Résultats de traduction Vulcano - fumarole activity from 09.10.2021, at 9:54 a.m. and 3:21 p.m. respectively - INGV VLV webcam
647 / 5000 Résultats de traduction Vulcano - fumarole activity from 09.10.2021, at 9:54 a.m. and 3:21 p.m. respectively - INGV VLV webcam

647 / 5000 Résultats de traduction Vulcano - fumarole activity from 09.10.2021, at 9:54 a.m. and 3:21 p.m. respectively - INGV VLV webcam

The video below was shot on October 3, 2021 by volcanologist Alessandro Gattuso (Palermo section of the INGV) during a "walk" through the fumaroles on the northern edge of the crater of La Fossa, as part of a '' a measurement and sampling mission. High pressure gas emissions were occurring at various locations, generating a loud whistling sound.

 

Sources : INGV OE & CME / Centro Monitoraggio Eolie

Vulcano - fumarole activity from 03.10.2021 - turn on the sound - video Alessandro Gattuso (volcanologist Palermo section of the INGV)

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