sixpenceee: Eruptions at Mount Etna tin 2013 have changed the shape of its vent, causing it to blow perfect 100-meter-wide, 328 feet smoke rings. Source: Tom Pfeiffer
sixpenceee: Eruptions at Mount Etna tin 2013 have changed the shape of its vent, causing it to blow perfect 100-meter-wide, 328 feet smoke rings. Source: Tom Pfeiffer