A gas-and-ash plume rises above Redoubt on 18 December 1989. The eruption began with a major explosion on 14 December that created a new vent in the summit crater. A lava dome was extruded in the new vent but was repeatedly destroyed by explosive eruptions. Pyroclastic flows and lahars often travel down the Drift River valley to the N and NE.

Photo by W. White, 1989 (Alaska Volcano Observatory, U.S. Geological Survey).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Galleries: Ash Plumes and Ashfall

Keywords: plume | emissions | gas plume | ash plume | wind dispersal | ashfall | eruption

Redoubt