Kīlauea summit eruption in Halemaʻumaʻu crater - September 29, 2021
An eruption began within Halemaʻumaʻu crater in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park, on September 29, 2021. Vigorous lava fountains formed in the middle part of the lava lake that was active in Halemaʻumaʻu crater from December 2020 until May 2021. The lava fountains fed lava flows that quickly covered the entire floor of Halemaʻumaʻu crater. USGS image.