West vent, Halema‘uma‘u, Kīlauea summit eruption — October 18, 2021

View of where lava exists the spatter cone at the west vent and flows into the perched lava lake in Halema‘uma‘u, at the summit of Kīlauea. The silvery lava recently erupted and spreading away from the west vent, while the darker lava at the margin of the lake is cooled and not moving. This photo was taken from the south rim of the crater. USGS photo by N. Deligne.