LOS ANGELES — One of the world’s most active volcanoes sprang into life again Monday, spewing columns of lava 80 meters above Hawaii, U.S. vulcanologists said. Images showed enormous fissures in the caldera of Kilauea, on Hawaii’s Big Island, spraying jets of molten rock into the air. The U.S. Geological Survey’s Hawaiian Volcano Observatory said the eruption began just after 2 a.m. local time (1200 GMT) in the southwestern section of the caldera. “At 4:30 a.m., lava fountains were observed with heights up to 80 meters [262 feet],” the agency said. “Molten material, including lava bombs, is being ejected from