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Preliminary Volcano-Hazard Assessment for Gareloi Volcano, Gareloi Island, Alaska

Gareloi, United States, 2008

Plate 1 in: Coombs, M.L., McGimsey, R.G. & Browne, B.L. (2008). Preliminary volcano-hazard assessment for Gareloi Volcano, Gareloi Island, Alaska. U.S. Geological Survey, Scientific Investigations Report 2008–5159, 27 p., 1 plate.



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 ID569
Hazard Process(es)Ballistics; Lahars; Lava flows; 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 ScaleMultiple scales
Publication FormatPoster-style map insert in hazard assessment
Zonation Method(s)Geologic history; Probabilistic modeling; Scenario modeling
Zonation Model(s)ASHFALL (Hurst 1994); Energy cone or line (Heim 1932; Sheridan 1979; Sheridan & Malin 1983)
Scenario(s) ConsideredSeason or weather; Size, VEI, or intensity
Hazard Zone Label(s)Estimated value or Hazard Impact Metric; Hazard process name; Scenario name
Probability Definition(s)Qualitative relative probability (e.g. high-medium-low)
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)Hillshade
Basemap overlay(s)Contour lines
DiemsionalityPlanimetric (2D or map) view
Color SchemeDark to Light (color)
Volcanic Alert Level System
Go to Global Volcanism Program page for Gareloi →