April 22, 2021 — Kīlauea summit lava lake

On Thursday, April 22, HVO scientists observed the ongoing eruption at the Kīlauea summit from the south rim of Halema‘uma‘u. This photo shows the active western portion of the lava lake, which appears to be in the process of shrinking again, with its northeast (upper-right) and southwest (lower-left) ends crusting over substantially. For scale, the distance from the western fissure (upper-left) to the nearest part of the main island in the lake (lower-right) is approximately 180 m or 590 ft. USGS image.