'Volnado' spins skyward as Hawaii's Kīlauea volcano erupts

A live camera at Hawaiʻi's Kīlauea volcano captured a rare sight this week - a swirling "volnado" forming next to a fountain of lava, the latest dramatic reminder of the mountain's restless nature. The video released by the US Geological Survey (USGS) shows a column of ash sucked into a whirling vortex as molten rock...