The latest activity, classified as episode 11 of the ongoing eruption, began at 6:26 p.m. with low-intensity spattering before intensifying. By 6:50 p.m., lava was flowing onto the caldera floor through a spillway in the north vent, covering 10% to 15% of Halemaumau’s floor, officials said.

VIDEO COURTESY USGS A livestream video from the Halema ʻuma ʻu Crater from the northwest rim of the caldera looking east. COURTESY USGS Lava fountains of 400 to 500 feet high shoot up within the west vent in Halema ʻuma ʻu Crater.