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La Palma eruption update 25th November 2021: New lava emission points south of the main cone

By Geotenerife 1 year ago
Home  /  VolcanoStories  /  La Palma  /  Day by Day  /  La Palma eruption update 25th November 2021: New lava emission points south of the main cone
 By Geotenerife  25th Nov 2021

La Palma eruption – 25th November 2021

Daily summary

An increase in lava emission was seen throughout the day. Initially, at 9 am local time, a sudden increase was seen from the main effusive focus on the NW flank of the main cone and then at 11 am a new lava flow heading SW was observed emitted from a reactivated emission point to the east of the main cone. Finally, in the afternoon, multiple new emission points opened underneath and surrounding a house <1 km south of the main cone. The new flow travels parallel to flow 11 along new ground at the southern margin of the current lava flow field, affecting buildings and heading towards the photovoltaic plant and cemetery in Las Manchas. Aside from the new flow, the increase in lava emission caused overflows of flows 5 and 7 to the NE of Todoque Mountain. The seismicity however remained at levels similar to the 24th. 41 events were recorded, with a higher proportion of intermediate (10-15 km depth) events to deep (30-45 km depth) events, reflecting a decrease in deep seismicity, although the day’s largest earthquake was a mbLg 4.8 event at 35 km depth.

Volcanic tremor remains low, whilst deformation now remains stable across the whole network. Again, SO2 emissions were reported to be estimated at a ‘high’ level (1,000-29,999 tons per day) whilst the ash and gas plume height was not reported. As a general trend however, satellite measurements imply current SO2 emissions are lower than the start of the eruption. Regarding air quality, SO2 levels were good or reasonably good in all stations throughout the day aside from a period of regular air quality in Los Llanos in the morning. PM10 values improved in El Pilar and La Grama throughout the day to reasonably good levels, whilst the rest of the network remained at good levels.

(Above) The new lava flows and vents that emerged on the 25th and are affecting new land towards the south of the lava flow field. Video credit: INVOLCAN

Sources: Government of the Canary Islands, PEVOLCA, Involcan, IGN, DSN, Cabildo La Palma, 112 Canarias, Tolouse VAAC, Copernicus EMS

Lava flows

Earthquakes

Official social media

To see our full social media archive, visit our open data section or click here.

News articles

  • EMSO ERIC – EMSO ERIC has deployed the egim offshore La Palma close to the new lava flow – here
  • El Pais – Eruption now longest – contains old drawings of eruptions in the 1600s – here
  • El Pais – La Palma volcanic eruption is now the longest seen on the island in 375 years – here
  • InSpain – La Palma eruption threatens flora and fauna – here
  • RTVE – Las Manchas cemetary buried by lava – here

To see our full news archive, visit our open data section or click here.

Found a broken web link? We have archived all of our news articles on the WayBack Machine. You can view the pages by 1. pasting the broken link into WayBack Machine and clicking ‘Browse History’ 2. clicking on the latest capture date and then 3. clicking ‘view capture’. Please let us know of any broken web links by contacting us at enquiries@geotenerife.com.

Eruption footage

News and Interviews

Witness Testimonies

Interactive Lava Flow Map

Notes: Use the button in the top right to open the map into full screen mode. Use the legend icon in the top left to see the legend and further information about the map. Click on individual days to see an outline of the lava flows on that day.

Interactive Earthquake Map

click here to enlarge

Notes: The size of the points represents the size of the earthquake, and the colour represents the depth. The map will also only show a certain number of points at once. For ease of use, we recommend you uncheck all dates and the satellite basemap from the legend in the top right, and inspect the earthquakes one day at a time.

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  Day by DayLa PalmaVolcanoStories
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