September 11, 2023—Kīlauea summit eruption reference map
A new eruption at the summit of Kīlauea volcano began at approximately 3:13 p.m. on Sunday, September 10, 2023. This map depicts activity within Halema‘uma‘u on the second day of the eruption, September 11. Lava is currently erupting from multiple fissures on the eastern down-dropped block from the 2018 caldera collapse, inundating both the block itself and sections of the western crater floor. The western floor was built during the previous four eruptions in Halema‘uma‘u, dating back to 2020; the extent of lava from the June 2023 eruption is marked in light purple. Approximately 448 acres (181 hectares) have been covered with new lava in the past two days.