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.
Photograph by D.A. Swanson on 30 December 1969
In the image shown here, 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.

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

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