Lava spewed from the Kilauea Volcano's summit caldera in Hawaii on December 23. Footage shows the molten rocks forming a fountain in the southwest part of Kaluapele caldera. The USGS Hawaiian Volcano Observatory said the eruption began earlier that day and covered 650 acres of caldera floor.

One of the world's most active volcanoes spewed lava into the air for a second straight day on Tuesday. The eruption of Kilauea volcano on Hawaii's Big Island has stayed within the mountain's summit caldera inside Hawaii Volcanoes National Park.