Cartoon showing hypothetical phreatomagmatic and Strombolian style eruptions within Okmok caldera. Eruption deposits associated with each type of eruption are noted on the figure. Figure taken from Beget, J.E., Larsen, J.F., Neal, C.A., Nye, C.J., and Schaefer, J.R., 2005, Preliminary volcano-hazard assessment for Okmok Volcano, Umnak Island, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2004-3, 32 p., 1 sheet, scale 1:150,000.
Credit: Image courtesy of the AVO/ADGGS.