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Preliminary Volcano-Hazard Assessment for Great Sitkin Volcano, Alaska

Great Sitkin, United States, 2003

Plate 1 in: Waythomas, C.F., Miller, T.P. & Nye, C.J. (2003). Preliminary volcano-hazard assessment for Great Sitkin Volcano, Alaska. U.S. Geological Survey, Open-File Report 03-112, 25 p., 1 plate. https://doi.org/10.3133/ofr03112



This map was produced by an official agency, but may not be the most recent, most complete, or main operational map. For the current operational hazard map, please consult the proper institutional authorities.


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Map Data

Map ID570
Hazard Process(es)Debris avalanches; Gas; Lahars; Lateral or directed blasts; Lava dome-related hazards; PDCs; Tephra fall
Hazard Zone PresentationHazard process-focused: Most hazard processes are separated by hazard process type on a series of small map panels of similar sizes
Temporal ScaleBackground, or long-term, map
Spatial ScaleIsland
Publication FormatPoster-style map insert in hazard assessment
Zonation Method(s)Analog geology; Geologic history; Scenario modeling
Zonation Model(s)Energy cone or line (Heim 1932; Sheridan 1979; Sheridan & Malin 1983)
Scenario(s) ConsideredAnalog volcano(es); Season or weather; Size, VEI, or intensity; Worst-case
Hazard Zone Label(s)Hazard process name; Scenario name
Probability Definition(s)Qualitative relative probability (e.g. high-medium-low); Scenarios imply probability
PurposeMultiple: intended for multiple purposes including general hazard awareness, planning, and crisis management
AudienceMultiple audiences (usually the public, civil authorities, and land-use planners)
Language(s)English
Basemap(s)Contour lines
Basemap overlay(s)
DiemsionalityPlanimetric (2D or map) view
Color SchemeCategorical/Qualitative
Volcanic Alert Level System
Go to Global Volcanism Program page for Great Sitkin →