The main northern fissure erupting within Halema‘uma‘u

The main northern fissure erupting within Halema‘uma‘u is slowly being drowned by the rising lava lake. This telephoto image shows that the fissure has two adjacent fountains, the main fountain is on the east (right side) and there is a much smaller one to the west (left side). The smaller fountain is not visible from the Hawaiian Volcano Observatory webcams located on Halema‘uma‘u’s western rim, because the fissures spatter cone blocks it from view. USGS photo taken on December 25 by F. Trusdell.