La Palma eruption update 10th November 2021: More deep earthquakes recorded

La Palma eruption – 10th November 2021

Daily summary

The size of the lava delta is increasing with the arrival of flow number 2 at the coast yesterday, which has increased the total area affected by lava flows by more than 10 hectares, with the total area affected now standing at 998 hectares. The fronts of the other lava flows remain stable however, as they have for the last couple of days. Outside of the affected areas, in order to secure the electricity supply to the surrounding towns, PEVOLCA have announced two sites for new backup electricity generation plants. The number of earthquakes increased again to 118, being recorded mostly at intermediate (10-15 km) depths with some deeper (35-40 km depth) events too, with the day’s largest earthquake being a mbLg 4.8 event at 34 km depth. The proportion of deeper earthquakes increased throughout the day.

At the closest GPS station to the eruption (LP03) near Jedey, some variable deformation reflecting eruption dynamics continue to be seen, with slight regional deflation seen at the rest of the stations. SO2 emissions showed a marked decrease relative to the 9th, at 13,000-15,000 tons per day, whilst the ash and gas plume reached 1800 m. However, satellite measurements imply current SO2 emissions show a downward trend since the start of the eruption. Currently, tremor remains stable at low levels as in the last days. Air quality remained improved for a second day compared to the previous week. SO2 levels were good-reasonably good in all stations except Puntagorda, which was at regular levels and exceeded the daily threshold (125 μg/m3). PM10 concentrations were again lower in Los Llanos, between fair and unfavourable levels, whilst concentrations were between good and reasonably good in the other stations. Again, the daily threshold (50 μg/m3) for PM10 was not exceeded in any of the stations.

A false colour image showing yellow (hot) lava flows cascading down cliffs and into the cold (dark blue) beach and ocean

A thermal image of the expansion of the lava delta where the new stream to the south has reached the sea. The temperature scale is in degrees Celsius. Image credit: INVOLCAN

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

Lava flows


Exclusion zone map

Exclusion zones shown here have been approximated from press releases from the Cabildo de La Palma and will not be exact, nor claim to be official maps of the exclusion zones. For official information, please contact the Cabildo de La Palma.

Official social media

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News articles

  • Metro – Lava spills over cliffs – here
  • NY Times – Lava flows reach coast at new point – here

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

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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

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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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