Halema‘uma‘u lava lake, Kīlauea summit eruption—March 26, 2021

A close-up aerial view of the southern active lava lake margin within Halema‘uma‘u crater, at Kīlauea summit. The formation of the levee containing the “perched” active lava lake (center to upper-right) is partially due to crustal plates from the active lake surface being pushed onto the rim of the lava lake. See the magnified image of the levee (lower-left) for a more detail view. Today, March 26, 2021, HVO geologists using a laser rangefinder, measured this section of the levee to be approximately 3 m (10 ft) high. USGS photo taken by L. DeSmither.