Telephoto view of spatter being thrown from the west vent

Photo from the western rim of Kīlauea caldera looking down on the west vent feeding the lava lake in Halema‘uma‘u. Spatter is being thrown 5-10 m (16-33 ft) high out of the west vent onto the walls of the cone that has formed around the lava fountain. The small pond inside the cone is about 2 m (7 ft) higher and forms a small cascade down to the larger lava lake. USGS photo by D. Downs.