Rubble after collapse of Pu‘u ‘Ō‘ō floor and perched lava lake

At 2:02 p.m., HST, on August 3, the floor of Pu‘u ‘Ō‘ō crater, which had risen significantly over the past month, forming a dome beneath the perched lava lake, started to subside. By 3:15 p.m., the crater floor and perched lava lake began to collapse. Within a couple of hours, the lava lake was no longer visible, and the crater floor was covered in rubble.