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La Palma eruption update 30th November 2021: Highest number of daily earthquakes recorded since the start of the eruption

By Geotenerife 12 months ago
Home  /  VolcanoStories  /  La Palma  /  Day by Day  /  La Palma eruption update 30th November 2021: Highest number of daily earthquakes recorded since the start of the eruption
 By Geotenerife  30th Nov 2021

La Palma eruption – 30th November 2021

Daily summary

The eruptive activity remains intermittent from some or all of the vents in the main cone at times, although lava emission has continued from the main cone. Elsewhere, at the new secondary cone at the NE of the main cone, there have been several small landslides. There are two main active lava flows, the flow to the north of the flow field near Tajuya attached to previous flows, and a flow to the west of Todoque Mountain covering new land. Seismicity increased significantly, measuring the most daily events recorded since the eruption began. 376 events were recorded, with most being intermediate (10-15 km depth) events although some deep (30-45 km depth) events were recorded, including the day’s largest earthquake which was a mbLg 4.8 event at 37 km depth.

Volcanic tremor is low, whilst deformation now remains stable across the whole network except for some possible deformation signals at the station nearest the volcano, but these also show signs of meteorological origin. SO2 emissions were measured at a ‘high’ level (1,000-29,999 tons per day), and the ash and gas plume height was 2,600 m. As a general trend however, satellite measurements imply current SO2 emissions are lower than the start of the eruption. Air quality with respect to SO2 reached unfavourable levels in Los Llanos and regular levels in Tazacorte and Puntagorda, but none exceeded the daily limit threshold (125 μg/m3). All other stations retained good or reasonably good values with respect to SO2 levels. PM10 levels were better, with good or reasonably good levels in all stations throughout the day.

(Above) Strombolian activity from the vent on the eastern flank of the main cone on the 30th, during a period of limited activity from the vents within the main cone. 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

  • EuroNews – La Palma: Authorities urge people to wear masks due to toxic gas – here
  • Spanish News – The Canarian words popularized by the La Palma Volcano – here
  • El País – Advancing lava poses a new threat – here
  • Canary Islands Government – Damage asessment for fruit and veg – 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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