La Palma volcano eruption update: intense ash emissions, strong quakes, but lava flows slowed

Sat, 23 Oct 2021, 16:36
16:36 PM | BY: T
Ash plume rising today from La Palma, drifting south and southeast (image: Volcanes de Canarias @VolcansCanarias / twitter)
Ash plume rising today from La Palma, drifting south and southeast (image: Volcanes de Canarias @VolcansCanarias / twitter)
Activity at the vent this afternoon (image: Canarias TV live stream)
Activity at the vent this afternoon (image: Canarias TV live stream)
Current seismic signal LP01 station (image: IGN)
Current seismic signal LP01 station (image: IGN)
Activity continues with strong ash emissions and lava effusion from the vents, similar to previous days.
The overall advance of the lava flow fronts has slowed down, fortunately. In the last 24 hours, only 3.24 hectares have covered additionally by lava flows. The total affected area stands now at 850 hectares, and the flow field is at its maximum 2,900 m wide.
This apparent decrease of lava flow activity, however, is likely not because a decrease of magma output, but because most of the erupted lava has been adding to thicken the existing lava flows and/or overlapping them. Volcanic tremor remains high; it has even increased a bit compared to yesterday, suggesting that magma output rates are still very elevated.

Earthquake activity remains high, and with the addition of the recent 4.9 quake, slowly increases in both numbers and maximum magnitudes.
Ground deformation has increased again slightly: the deflationary trend of the past day stopped and turned again to inflation. At the LP 3 measuring station, the ground elevation is now 18.5 cm uplift compared to pre-crisis levels.

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