March 11, 2025—North vent lava fountain

The north vent in Halema‘uma‘u crater was producing lava fountains about 160 feet (50 meters) high on the morning of March 11, with these fountains emerging from a small, sloshing pond inside the walls of the vent's spatter cone. The lava pond can be seen in the lower-left portion of this photo, as well as the spillway that exits through a notch in the cone that itself is obscured from view. USGS photo by M. Patrick.