Starting at about 2 p.m. on Monday, April 30, marked increases in seismicity and ground deformation indicated that a change was underway at Pu‘u ‘Ō‘ō on KÄ«lauea Volcano’s East Rift Zone. Visibility was nearly obscured due to poor weather conditions, but a brief clearing allowed HVO’s webcam (POcam) to capture this image of the crater within Pu‘u ‘Ō‘ō shortly before the crater floor began collapsing. Unfortunately, due to ongoing poor weather, a clear view of the collapsed crater floor has not yet been possible. The Pu‘u ‘Ō‘ō crater floor continued to collapse for several hours yesterday; smaller drops in the crater floor have likely continued through today (May 1) based on thermal images. Webcam image taken Monday, April 30, 2018 courtesy of U.S. Geological Survey