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Clear weather provided good views of the water pond in Halema‘uma‘u, which continues to slowly rise. The variation in color on the surface was evident today. USGS photo by M. Patrick, 08-30-2019.
This close-up of the eastern end of the pond provides a better view of the varying surface color. Ripples are also obvious. USGS photo by M. Patrick, 08-30-2019.
Numerous fumaroles are present below the north rim of Halema‘uma‘u. This telephoto image shows the extensive sulfur deposits on the rocks surrounding the gas vents, which are visible as small black holes, such as the prominent one near the top of the image. USGS photo by M. Patrick, 08-30-2019.