AdvertisementAsh Cloud And 'Ballistic Blocks' Shot From Kilauea's Crater, USGS SaysMay 17, 2018Scott NeumanfacebookEmailAn image provided by the U.S. Geological Survey shows sulfur dioxide plumes rising from Kilauea's fissures along the rift and accumulating in the cloud deck, viewed from a Hawaiian Volcano Observatory overflight on Wednesday. (U.S. Geological Survey via AP)