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Smoke rings from the eruption of Mount Etna

Added	Wed, 21/12/2022
Источники	izverzhenie-vulkana.ru
Дата публикации	Wed, 08/06/2016
Версии	Vortex ring

Under certain conditions, some volcanic vents can form large visible smoke rings. This is a rare phenomenon, observed near the volcano of the mountain Etna in Italy (Sicily).