HONOLULU—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. No homes were threatened. Molten rock began shooting from the volcano before dawn on Monday when fissures opened in the caldera floor and propelled lava 295 feet into the air. The red liquid formed tall fountains and then spread across 650 acres (263 hectares). The Hawaiian Volcano Observatory estimated the lava was about 1 yard thick. People watch as an eruption takes place on the summit of the Kilauea volcano in Hawaii on Dec. 23, 2024. (Janice Wei/NPS via AP) An eruption takes place on the summit of the Kilauea volcano in Hawaii on Dec. 23, 2024. (Janice Wei/NPS via AP) An eruption takes place on the summit of the Kilauea volcano in Hawaii on Dec. 23, 2024. (Janice Wei/NPS via AP) An eruption takes place on the summit of the Kilauea volcano in Hawaii on Dec. 23, 2024. (Janice Wei/NPS via AP) Scientists expect activity to fluctuate in the coming days. The lava paused Monday afternoon but fountains reemerged Tuesday morning….