Cumbre Vieja volcano (La Palma): eruption continues with strong lava fountains, lava flow and ash emissions

Сб, 25 сен 2021, 10:36
View of the eruption with the lava fountain and lava flow last night
View of the eruption with the lava fountain and lava flow last night
Ash emission this morning (image: La Palma 24 webcam)
Ash emission this morning (image: La Palma 24 webcam)
Current seismic signal PA01 station since yesterday (image: IGN)
Current seismic signal PA01 station since yesterday (image: IGN)
Lava fountain last night
Lava fountain last night
Lava fountain and the new effusive vent with the lava flow last night
Lava fountain and the new effusive vent with the lava flow last night
The eruption continues at high levels with no significant variation. When observed yesterday evening and night, the new effusive vent that opened on the NW flank's base of the main cone yesterday around noon erupted a rigorously boiling low lava fountain going into a channeled fast-flowing lava flow that traveled westwards following the northern margin of the existing lava flow from the previous days.
By midnight it had reached an estimated length of 1.5 km and was covering and destroying land including a number of structures and buildings in the area of El Paraiso and/or Todoque.
The summit vent was producing continuous, fast pulsating lava fountains to estimated 3-500 m height, with ejections of some bombs probably reaching or surpassing 1000 m in height. It continued all day and night at fluctuating intensity, and has been generating an ash column that is spreading into a plume hovering over western parts of the island.
Pictures and videos of the eruption will be posted at later stage when time permits. As to the eruption overall, it seems to be at its peak perhaps and becoming stable. Tremor intensity is high overall with gradual ups and downs over periods of hours, suggesting that the flow of magma to the surface is relatively constant at elevated levels.
Deformation data suggest that the vertical inflation and horizontal ground deformation are stabilizing and coming to a halt. This should indicate that the amount of magma entering the upper reservoirs underground is compensated by the lava being erupted.
The absence of significant wind allows the spread of ash over much of the valley and also over the eastern side of the island where the airport is located. As a consequence of the strong ash emissions, the airport was closed and flights are being canceled.

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