10 Dec La Palma eruption update 10th december 2021: Seismicity and tremor remain low
La Palma eruption update 10th december 2021: Seismicity and tremor remain low
There has been little variability in the eruption in the last 24 hours, with it continuing to show strombolian activity and ash emission from several vents in the centre and southeast of the main cone, and effusive activity from vents to the west of the main cone. The lava flows continue to feed mostly flow 9, but some of flow 11 as well, although in the last 24 hours no new land has been affected by the lava flows.
Seismicity remains low, with only 44 events being recorded yesterday, peaking at M3.7, being recorded largely at intermediate depths (<20 km). This trend is also mirrored in the tremor, which remains low with little variability and has lowered slightly in the last 24 hours. Deformation too remains similar throughout the network, with no observable trends close to the eruptive centre, and stability in more distal stations.
Today, air quality in the exclusion zone is better than yesterday, allowing access from both the north and south, by land and by sea. SO2 levels away from the exclusion zone yesterday were good in all stations except Los Llanos de Aridane, Tazacorte and Puntagorda, which recorded levels between regular and unfavourable. PM10 concentrations remained better than previous days yesterday, reaching very good levels in San Antonio, and reasonably good in all other stations.
(Above) A video of volcanologists taking measurements to the northeast of the main cone. At the end of the video, the secondary cone can be seen which contains multiple large cracks due to its cooling and contraction. Video credit: IGN Spain
Sources: Government of the Canary Islands, PEVOLCA, Involcan, IGN, DSN, Cabildo La Palma, 112 Canarias, Tolouse VAAC, Copernicus EMS
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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.
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