Close view of rock hurled from the Overlook crater during an explosive event last evening. The rock broke apart on impact, and was about 60 cm (24 in) before it hit the ground. The location is a few hundred meters (yards) south of the Overlook crater at the Halema‘uma‘u parking lot. Note the ash covering the parking lot, less than about 1 cm (0.4 in) in thickness. Photo taken Wednesday, May 16, 2018 courtesy of U.S. Geological Survey