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Photo glossary of volcano terms

Standing wave in lava flow on Mauna Loa Volcano, Hawai`i

Photograph by D.A. Swanson on 30 December 1969

Lava pours over edge of Aloi Crater in a dazzling lava cascade about 25 meters tall during the 1969-71 Mauna Ulu eruption on the east rift zone of Kilauea Volcano, Hawai`i. The lava fountain in background is about 30 m tall.

Lava cascade
A cascade of water is a small waterfall formed as water descends over rocks. In similar fashion, a lava cascade refers to the rush or descent of lava over a cliff. In Hawai`i, lava cascades typically occur when lava spills over the edge of a crater, a fault scarp, or a sea cliff into the ocean.

 

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U.S. Department of the Interior, U.S. Geological Survey, Menlo Park, California, USA
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Last modification: Monday, 04-Sep-2000 22:40:27 EDT (SRB)