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 Photograph by M.T. Mangan on January 10, 1992 |
| Geologist on the rim of Pu`u `O`o cinder and spatter cone; Pu`u `O`o is located on the east rift zone of Kilauea about 20 km from the summit caldera. Note low lava fountain along the edge of the lava pond in the crater and the blue-colored volcanic fume rising from the pond. This fume contributes to vog on the Island of Hawai`i. The hazard from the gas is greatest immediately downwind of the crater, and geologists work upwind as much as possible and wear gas masks to limit the intake of sulfur dioxide gas. |
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