Kīlauea summit eruption in Halemaʻumaʻu crater - October 1, 2021

A view of the new eruption within Halema'uma'u at Kīlauea summit at approximately 9 a.m. HST on the morning of October 1, 2021. This view, from the south rim of Halema'uma'u, shows that lava continues to erupt from multiple vents along the floor and western wall of Halemaʻumaʻu crater. Over the past 24 hours, the lava lake surface has risen approximately 4 meters (4.4 yds). Sulfur dioxide (SO2) emission rates remain high and were estimated at around 20,000 tonnes per day the morning of September 30, 2021. This is significantly lower than the initial emission rates of 85,000 tonnes per day that were measured just after the eruption started on the afternoon of September 29, 2021.  USGS photo by F. Trusdell.