Global Volcanism Program | Image GVP-02190

Ko-Usu lava dome, seen here from the S, is mantled by a thick ejecta deposit from the 1977 eruption. This is one of several lava domes in the summit crater of Usu volcano, formed after a major explosive eruption either in 1663 or 1769 CE. Yotei volcano is on the left horizon. Photo by Norm Banks, 1981 (U.S. Geological Survey).

Ko-Usu lava dome, seen here from the S, is mantled by a thick ejecta deposit from the 1977 eruption. This is one of several lava domes in the summit crater of Usu volcano, formed after a major explosive eruption either in 1663 or 1769 CE. Yotei volcano is on the left horizon.

Photo by Norm Banks, 1981 (U.S. Geological Survey).

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

Galleries: Lava Domes | Ash Plumes and Ashfall

Keywords: environmental impact | lava dome | deposit | tephra | ashfall

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