Etna volcano update: Volcano likely preparing for another paroxysm
Fr, 19. Mär 2021, 07:2307:23 AM | VON: T
Etna's New SE crater this morning (image: LAVE webcam)
A bit more than 2 days since the last lava fountaining episode (known as paroxysm) at the New SE crater, it seems at least likely that the volcano is now heading towards another such eruption in the next hours or so.
Current tremor signal (image: INGV Catania)
The previous 14 events had been at very regular intervals of around 2-2.5 days between each: in other words, if Etna continues this rhythm, which has been more or less stable for more than a month now, it would be now about "time" for number 15 of this exceptional series.
Another strong indicator is the volcanic tremor amplitude, a measure of magma moving inside the conduits, which now has started to increase significantly. Visually, it is still difficult to judge from webcam imagery whether it has also started to increase or not.
During the interval since the eruption two days ago, there has been mild, sporadic glow from the summit vent, probably caused by small strombolian explosions, as well as glow from sliding hot lava rocks of the recent lava flows and scoria fallout deposit on the flanks of the cone.
Mi, 17. Mär 2021, 09:45