The reconfiguration of the cone continues, with large amounts of lava being emitted, on the new stream to the south of the lava flow field, on top of the original lava flow, and on the stream that runs to the north of Todoque mountain. Some of the areas that were isolated but not covered by lava initially are now being ‘filled in’ by the renewed progress of these flows. The flows towards La Laguna are largely unchanged, and the stream closest to the coast remains about 110 m from the cliffs. There was a partial collapse of the upper part of the cone at 8pm local time, which dragged large blocks down the lava flows away from the cone. In Fuencaliente, the LP-2 road had to be closed due to small landslides in the area, most likely due to the increased earthquake activity, particularly at intermediate depths (10-15 km). 247 events were recorded, peaking at 3.7 mbLg. PEVOLCA have not ruled out further small landslides in steep areas, and if the current trend in earthquakes continues, there is a greater probability of earthquakes reaching intensity values of 6.

SO2 emissions stayed high reaching values of 40,800 tons per day, although this is still an underestimated value, and the ash and gas plume reached 3800 m.  The tremor remains high, with pulses of intensification. Deformation remains stable at stations closest to the eruption, although a slight regional deflation is still recorded further from the eruption, with the signal thought to be of deep origin. Air quality was improved, with SO2 levels remaining low in all stations throughout the day. PM10 concentrations remained below daily threshold levels (50 µg/m³) at all stations except Los Llanos, where values above this were recorded between 10am-4pm local time.

A picture of the main craters inside the main cone on the 25th, taken by a drone. Here the appearance of the eruptive fissure can clearly be seen, with multiple aligned erupting vents. Image credit: 112 Canarias

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