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Fissure 8 tephra cone. Volcanic gas rises from the vent and channel feeding the

By Volcano Hazards Program
image related to volcanoes. See description
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Detailed Description

Fissure 8 tephra cone. Volcanic gas rises from the vent and channel feeding the pyrocumulonimbus cloud above. Small pits in the tephra form where the material collapses into void space below.

Sources/Usage

Public Domain.