Kīlauea summit eruption in Halemaʻumaʻu crater - September 29, 2021
At approximately 4:43 p.m. HST on September 29, 2021, another vent opened on the west wall of Halemaʻumaʻu crater, a little more than an hour after new fissure vents opened on the floor of Halemaʻumaʻu crater. By 5:09 p.m., when this photo was taken, the west wall vents had grown. These vents are located about 100 m (109 yd) south of the west vent that was active in Halemaʻumaʻu crater until May 2021. USGS image.