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No major changes were observed at the summit. The water level continues to slowly rise, and the water surface has a sharp color boundary separating the east and west portions of the lake.
A small rockslide occurred today on the south wall of Halema‘uma‘u, sending boulders into the water at the bottom of the crater. USGS video by M. Patrick.
A view from the south rim of Halema‘uma‘u shows a lower collapsed block which has remains of Crater Rim Drive and the Halema‘uma‘u parking lot. The white feature in the lower right is a stop sign that was present at the eastern exit of the parking lot. Near the top of the photo, a lower collapsed block is formed from the remains of the pre-2018 Halema‘uma‘u crater floor. USGS photo taken May 6 by M. Patrick.