Like clockwork, approx. 48 hours after the previous one, Etna produced a 4th paroxysm in a row with near-identical time intervals from the New SE crater last night. It marked the 25th lava-fountaining episode during 2021.
The eruption followed very much the style observed during the previous lava-fountaining episodes: first, from 20:58 local time, strombolian activity resumed at the New SE crater while volcanic tremor began again to rise and its source moved to the area of underneath the New SE crater.
About 1 and a half hour later, activity had increased towards sustained lava fountains from 22:25 on. A tall plume of ash and scoria lapilli drifted ENE. The lava fountain lasted until midnight, when it rapidly ceased.
A lava flow was erupted that like during the previous episodes last week traveled to the SW from the New SE crater.
