Today at 10:28 a.m. HST, a partial collapse of the southern Overlook crater wall triggered an explosive event at KÄ«lauea Volcano’s summit lava lake. A large plume of gas, ash, and lava fragments was seen rising from the lava lake at the Jaggar overlook. The explosion threw debris onto the Halema‘uma‘u crater rim at the old visitor overlook, which has been closed due to ongoing volcanic hazards such as this explosive event. Photo taken Friday, April 6, 2018 courtesy of U.S. Geological Survey