Spatter and “ribbon bombs” (stretched fragments of molten lava) up to 30 cm (about 12 inches) long fell to the ground surface on the rim of HalemaÊ»umaÊ»u Crater during the two most recent explosions from KÄ«lauea’s summit lava lake. The black, glassy lava fragment shown here, about the size of a standard donut, landed amidst smaller, solid pieces of rock blasted from the vent. Photo taken Thursday, October 20, 2016 courtesy of USGS/HVO