La Palma volcano eruption update: lava flow activity decreases while earthquakes reach record numbers

mer., 1 déc. 2021, 10:04
10:04 AM | AUTEUR : T
Lava emission at the vents early today (image: Canarias TV live stream)
Lava emission at the vents early today (image: Canarias TV live stream)
Quakes vs depth under La Palma during the past 7 days, showing the latest increase
Quakes vs depth under La Palma during the past 7 days, showing the latest increase
Current tremor amplitude (image: IGN)
Current tremor amplitude (image: IGN)
Latest lava flow map (image: IGME)
Latest lava flow map (image: IGME)
Seismic activity reached a record number of almost 400 quakes of magnitudes above 2 during a 24 hour window yesterday. Volcanic tremor has increased and continues to fluctuate strongly.
While internal activity is high, the visible activity has decreased a bit since yesterday. According to official statement, there are now "moments" with no (or almost no) activity at the vents. These alternate with phases of frequent and loud explosions, sometimes accompanied by short-lived lava fountains and ash emissions.
The lava flows that had been spectacularly active in the past days continue to be visible near the vents, but were much less so in the past 12 hours. It might be that some of this apparent decrease is due to the fact that most lava is flowing inside the tunnels, but on the other hand, there has been very little advance at the fronts, most of which seem to be cooling now. According to the latest data, the area covered by lava flows stands at 1,134 hectares, out of which 43.46 Ha are at the southern and 5.05 Ha at the northern lava delta. The lava flow field has a maximum with of 3,350 meters.
As seen multiple times in the past weeks, the apparent (at least relative) calm of visible activity can change very quickly, and is likely no indication that the eruption is close to an end.

Actualités précédentes

mer., 1 déc. 2021, 08:06
The eruption at La Palma continued during 24-30 November, characterized by Strombolian explosions and lava fountaining/jetting from multiple existing and new vents, advancing and sometimes branching lava flows, and daily ash emissions. The eruption began on 19 September and had been active for 70 days by 28 November. Volcanic tremor levels were low, though during 28-29 November levels fluctuated and were sometimes intense. ... Read all
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