An example of rapid gully formation and erosion of pyroclastic deposits on the east flank of Kasatochi volcano about 10 months after the eruption. This particular gully is about 1.5 m deep and 3–4 m wide. See Special Section—Impacts of the 2008 Volcanic Eruption on the Terrestrial and Nearshore Marine Ecosystems of Kasatochi Island, Alaska, on pp. 245–341. Photograph by C. Waythomas, USGS-AVO, 12 June 2009.
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