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Washington Geologic Information Portal - Volcanic Hazards (USGS)

Washington (regional), United States, Year unknown

Washington Department of Natural Resources. Geologic Information Portal.



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.


Click on image for full-size map. If link seems broken, try the archived version.

Map Data

Map ID1557
Hazard Process(es)Ballistics; Lahars; Lava flows; PDCs; Proximal hazards; Regional hazards; Rockfalls; Sedimentation or erosion; Tephra fall
Hazard Zone PresentationHazard process-focused: Most hazard processes are separated by hazard process type on a main map panel
Temporal ScaleBackground, or long-term, map
Spatial ScaleUser selectable
Publication FormatInteractive web-based map
Zonation Method(s)Derived/simplified from another map
Zonation Model(s)
Scenario(s) ConsideredSize, VEI, or intensity; Source location or direction
Hazard Zone Label(s)Hazard process name; Location or source name
Probability Definition(s)No probability definition was discernable from the map
PurposeHazard awareness: Intended for educating the audience about the extent and probability of volcanic hazard
AudienceGeneral public and/or media
Language(s)English
Basemap(s)User selectable
Basemap overlay(s)Street map
DiemsionalityPlanimetric (2D or map) view
Color SchemeCategorical/Qualitative