Halema‘uma‘u overflow on November 12
Lava continues to erupt from the west vent in Halema‘uma‘u, and supply the lava lake through a spillway in the spatter cone. On November 12, a small overflow of the perched lava lake levee was visible from the western crater rim. Overflows are an important process for building up perched levees, as they help add height and stability. The height of the levee in this video was measured at 1 m (3.3 ft). USGS image L. Gallant.