Etna volcano: strombolian activity and steam rings - videos
After the violent paroxysm during 10-11 Nov 2013, the New SE crater continued to produce regular explosions, and, to our great surprise, we could observe during the afternoon of 11 Nov, that it often made fantastic vortex rings (steam rings or "smoke rings") that were blown eastward by strong Ponente.
Detail of steam ring:
Strombolian activity during the night of 10 Nov, with steam rings produced:
Similar activity on the evening of 11 Nov:
Bright explosion on the evening of 11 Nov (bursting lava bubble):
Gradually increasing strombolian activity shortly before midnight on 10 Nov:
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