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Volcano spews smoke rings: "Jellyfish" over Mount Etna

10:00
10 April 2024

Volcano spews smoke rings
"Jellyfish" over Mount Etna

Mount Etna in Sicily recently ejected large white rings of smoke into the sky. Some of them resembled giant jellyfish.

The rings consisting of water vapour are not threatening, but are rare to observe. It's still uncertain exactly how they form, however, a circular volcanic vent with a similar height on all sides is at least one of the requirements.

The rings are thought to form when gas bubbles are forced through the narrow vent in small explosions. This forces hot vapour upwards, which literally rolls down the inside wall of the crater. This is why the vapour rings rotate around their own axis.

How volcanoes impact our weatherread more
Weather & Radar editorial team
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