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La Palma eruption update 10th october 2021: New land to the north of affected by lava flows

By Geotenerife 1 year ago
Home  /  VolcanoStories  /  La Palma  /  Day by Day  /  La Palma eruption update 10th october 2021: New land to the north of affected by lava flows
 By Geotenerife  10th Oct 2021

La Palma eruption update 10th october 2021: New land to the north of affected by lava flows

Daily summary

The lava flows to the north of the lava flow field have been expanded as a result of the increased effusive activity caused by the rupture of the cone, including a lava flow that is covering new ground and is heading towards the part of Todoque not previously affected by the main lava flows. There are two branches of this flow, one to the south that has joined the previous flow, and one to the north which is travelling through the industrial estate and cement factory west of the town of La Laguna. At 2:30 pm local time, there was another partial collapse of the crater wall, releasing a large volume of lava as well as large blocks of the crater which were transported away by the lava flows. Currently, the lava exceeds 526 hectares, and the maximum width has also increased to 1,520 metres. The latest figures on destruction from Copernicus indicate 1,281 buildings affected, with 1,186 of those destroyed.

SO2 and PM10 concentrations were generally good, although a peak in SO2 concentrations in Los Llanos and El Paso almost reached the hourly threshold (350 μg/m3). For the rest of the day, SO2 concentrations remained low at all stations, and PM10 concentrations were below the daily threshold value (50 μg/m3) at all stations all day. For other eruption parameters, volcanic tremor is average and quite stable, with very infrequent peaks in amplitude. Deformation remains stable, with no significant trends being seen in the stations close to the eruption site. Earthquake activity again remains elevated and concentrated at 10-15 km depth, although there have been more deep (20-40 km) earthquakes reported in the last couple of days. 150 events were recorded, peaking at 4.3 mbLg. The ash and gas plume reached, 3500 m, and the SO2 emissions from the volcano were 7,652 tons per day, although this is an underestimate.

An aerial photograph showing lava flows advancing through countryside and houses that are all grey after having been covered in ash by the volcano. The photo looks downstream and can see to the sea where the lava has been creating new land

Aerial photographs showing the advancement of the two new lava streams (bottom left to centre). The streams have been affecting the industrial area in the centre of the image. The mountains in the background are Todoque Mountain (left) and La Laguna Mountain (right). Image credit: Cabildo de La Palma

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

  • Reuters – Lava blocks the size of buildings falling from La Palma volcano – here
  • Daily Mail – Blocks of red-hot molten lava as big as three-storey buildings roll down hillside – 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

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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