Puahiohio (dust devils) at Kīlauea and Mauna Loa

Upper left: a dusty lava puahiohio (at right in frame) above the main 2022 Mauna Loa lava flow on 2 December 2022, with the eruptive plume further in the background (at left in frame). Upper right: a lava puahiohio rips up the crust of the Kīlauea summit lava lake on 7 June 2023. Lower left: a light gray ash- and tephra-laden puahiohio downwind (to the right) of the Episode 25 lava fountains on 11 June 2025. Lower right: a dark gray ash- and tephra-laden puahiohio downwind (to the left) of the Episode 38 lava fountains on 6 December 2025. USGS photos by P. Nadeau and N. Deligne.