La Palma volcano eruption 2021: Sep 24 - new vent opens on cone

Around noon on Sep 24, a series of very strong explosions with shock waves and loud detonations were recorded at the cone; likely this was when the upper conduit inside it became occasionally blocked by large gas bubbles. The increased pressure lead to the opening of two closely spaced vents on the lower NW flank of the cone, from where new lava flows started to erupt.
The opening of these vents was accompanied by the formation of a new collapse crater above the northernmost of the two vents. Similar events were to be repeated in the coming days, and a week later, the flank crater was finally merged with the main crater. The vent at the bottom of this new crater quickly became one of the protagonists of the eruption at that stage: it produced vigorous spattering and was feeding a fast-flowing new surface lava flow that traveled along and enlarged the northern margin of the total lava flow field.
Even with the new effusive activity just tens of meters below, the summit vent continued to produce gas-rich lava fountains from now at least 3 vents close to each other in the summit crater. Initially the height of the fountain seemed to have decreased when the flank vent opened, but later regained in strength again, and continued to reach several hundred meters in height at similar levels as before.
The pictures show the activity from the cone, the lava fountaining and lava effusion from the new flank vent in the evening of 24 Sep.
A new effusive vent has formed on the northwestern flank of the cone at around noon of 24 Sep. (Photo: Tom Pfeiffer)
A new effusive vent has formed on the northwestern flank of the cone at around noon of 24 Sep. (Phot... [info]
(6 Hits)
A closer view reveals the new collapse area, or crater, on the flank of the cone, at the bottom of which a new effusive vent is located; a smaller effusive vent, eventually closing up again, can be seen on the right of it. (Photo: Tom Pfeiffer)
A closer view reveals the new collapse area, or crater, on the flank of the cone, at the bottom of w... [info]
(13 Hits)
The new lava flow from the NW flank vent has already traveled down the flank of the cone. (Photo: Tom Pfeiffer)
The new lava flow from the NW flank vent has already traveled down the flank of the cone. (Photo: To... [info]
(12 Hits)
Lava fountaining continues at the main (summit) vents, while liquid lava spattering of several meters in height and lava flow effusion occurs from the flank vent. (Photo: Tom Pfeiffer)
Lava fountaining continues at the main (summit) vents, while liquid lava spattering of several meter... [info]
(6 Hits)
The volcano is surrounded by dense clouds in the evening, making observations of the fountain difficult. (Photo: Tom Pfeiffer)
The volcano is surrounded by dense clouds in the evening, making observations of the fountain diffic... [info]
(4 Hits)
Sometimes, openings in the cloud let the fountain shoot through the top of the cloud. (Photo: Tom Pfeiffer)
Sometimes, openings in the cloud let the fountain shoot through the top of the cloud. (Photo: Tom Pf... [info]
(57 Hits)
Evening lava fountain through the cloud (Photo: Tom Pfeiffer)
Evening lava fountain through the cloud (Photo: Tom Pfeiffer) [info]
(3 Hits)
After sunset, the clouds remain, although sometimes permit partial views of the lava fountain. (Photo: Tom Pfeiffer)
After sunset, the clouds remain, although sometimes permit partial views of the lava fountain. (Phot... [info]
(52 Hits)
Lava fountain from the summit vents and liquid spattering at the flank vent. (Photo: Tom Pfeiffer)
Lava fountain from the summit vents and liquid spattering at the flank vent. (Photo: Tom Pfeiffer) [info]
(2 Hits)
The eruption scene at sunset. (Photo: Tom Pfeiffer)
The eruption scene at sunset. (Photo: Tom Pfeiffer) [info]
(2 Hits)
The view from Tajuya at dusk. This activity - continuous lava fountaining as well as bubbling and lava effusion from the flank vent - remains stable for the next 3 days! (Photo: Tom Pfeiffer)
The view from Tajuya at dusk. This activity - continuous lava fountaining as well as bubbling and la... [info]
(2 Hits)
Lava fountain visible in a longer exposure picture. (Photo: Tom Pfeiffer)
Lava fountain visible in a longer exposure picture. (Photo: Tom Pfeiffer) [info]
(55 Hits)
The lava fountain and flow illuminate the clouds bright red that hover over the eruption site. (Photo: Tom Pfeiffer)
The lava fountain and flow illuminate the clouds bright red that hover over the eruption site. (Phot... [info]
(6 Hits)
400 m tall jets of lava at night (Photo: Tom Pfeiffer)
400 m tall jets of lava at night (Photo: Tom Pfeiffer) [info]
(32 Hits)
Night-time lava fountain and lava flow (1/2) (Photo: Tom Pfeiffer)
Night-time lava fountain and lava flow (1/2) (Photo: Tom Pfeiffer) [info]
(5 Hits)
Night-time lava fountain and lava flow (2/2) (Photo: Tom Pfeiffer)
Night-time lava fountain and lava flow (2/2) (Photo: Tom Pfeiffer) [info]
(30 Hits)
At night, the powerful summit lava fountain pushes away most of the clouds and becomes visible again. (Photo: Tom Pfeiffer)
At night, the powerful summit lava fountain pushes away most of the clouds and becomes visible again... [info]
(7 Hits)
Lava fountain (Photo: Tom Pfeiffer)
Lava fountain (Photo: Tom Pfeiffer) [info]
(5 Hits)
Lava fountain (Photo: Tom Pfeiffer)
Lava fountain (Photo: Tom Pfeiffer) [info]
(3 Hits)
Lava fountain (Photo: Tom Pfeiffer)
Lava fountain (Photo: Tom Pfeiffer) [info]
(3 Hits)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer) [info]
(2 Hits)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer) [info]
(2 Hits)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer) [info]
(27 Hits)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer) [info]
(2 Hits)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer)
Lava fountain and lava flow from the fissure vent (Photo: Tom Pfeiffer) [info]
(2 Hits)
Lava fountain and lava flow from the fissure vent seen from Tajuya (Photo: Tom Pfeiffer)
Lava fountain and lava flow from the fissure vent seen from Tajuya (Photo: Tom Pfeiffer) [info]
(8 Hits)
Bizarre red clouds illuminated above the lava flow (Photo: Tom Pfeiffer)
Bizarre red clouds illuminated above the lava flow (Photo: Tom Pfeiffer) [info]
(5 Hits)
Spectators gather at the parking at the side of LP2 in Tajuya (Photo: Tom Pfeiffer)
Spectators gather at the parking at the side of LP2 in Tajuya (Photo: Tom Pfeiffer) [info]
(25 Hits)
Intense heat convection above the lava flow generates a small tornado (Photo: Tom Pfeiffer)
Intense heat convection above the lava flow generates a small tornado (Photo: Tom Pfeiffer) [info]
(8 Hits)
The heat tornado stays active for several minutes. (Photo: Tom Pfeiffer)
The heat tornado stays active for several minutes. (Photo: Tom Pfeiffer) [info]
(7 Hits)
Spectators along the LP-3 road near the church (Photo: Tom Pfeiffer)
Spectators along the LP-3 road near the church (Photo: Tom Pfeiffer) [info]
(7 Hits)
The new lava flow attracts many visitors to watch the activity, here from the side of the road near the church. (Photo: Tom Pfeiffer)
The new lava flow attracts many visitors to watch the activity, here from the side of the road near ... [info]
(4 Hits)
The new lava flow and eruption cloud seen from El Time late at night on early 25 Sep. (Photo: Tom Pfeiffer)
The new lava flow and eruption cloud seen from El Time late at night on early 25 Sep. (Photo: Tom Pf... [info]
(30 Hits)
Cumbrecita peak, the moon, the Ariadne valley and the eruption from El Time (Photo: Tom Pfeiffer)
Cumbrecita peak, the moon, the Ariadne valley and the eruption from El Time (Photo: Tom Pfeiffer) [info]
(32 Hits)
Photographers at El Time (Photo: Tom Pfeiffer)
Photographers at El Time (Photo: Tom Pfeiffer) [info]
(3 Hits)
Mirador El Time with the eruption behind (Photo: Tom Pfeiffer)
Mirador El Time with the eruption behind (Photo: Tom Pfeiffer) [info]
(3 Hits)

Videos 24 Sep evening - lava fountains and the new flank vent




La Palma eruption 2021 picture galleries:

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version

More on VolcanoDiscovery

Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.