Photo Information

Eruption cloud from Kilauea Volcano, Hawai`i
Photograph by J.D. Griggs on October 21, 1985
An eruption cloud consisting predominantly of steam (water) and sulfur dioxide gas rises above a fountain of lava erupting from Pu`u `O`o spatter and cinder cone on Kilauea Volcano. The persistent release of sulfur dioxide gas from Kilauea's active vents into the atmosphere since 1983 has created volcanic smog ("vog") and acid-rain conditions on the Big Island of Hawai`i. Vog aggravates respiratory problems, and acid rain damages crops and corrodes metal.

More information about VOG

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U.S. Department of the Interior, U.S. Geological Survey, Menlo Park, California, USA
Contact: VHP WWW Team
Last modification: 5 October 1999 (SRB)