Kīlauea Volcano’s summit lava lake, which was about 12 m (40 ft) below the vent rim on April 25 (left), overflowed the vent rim for the first time at about 9:40 p.m., HST, on April 28. As of noon on April 29 (right), the lava lake had overflowed the vent rim several more times. These Webcam images capture the summit vent before and after the overflows. Photos courtesy of USGS/HVO