This time-lapse video shows Halema‘uma‘u and Kīlauea Caldera
as seen from the USGS Hawaiian Volcano Observatory. It includes roughly one image for every day between April 14, 2018, and July 11, 2018. The lava lake
is visible early in the video, with overflows onto the caldera
floor on April 23, but the lake vanishes from sight in early May as pressure in the summit magma reservoir
decreases. Gas and ash
plumes associated with explosive activity are visible in May. Large-scale subsidence of the caldera floor around Halema‘uma‘u begins at the end of May and continues to the present. The volume of Halema‘uma‘u is now more than seven times larger than it was before the onset of this subsidence.