Volcanic-Hazard Zonation for Mount St. Helens, Washington
St. Helens, United States, 1995
Plate 1 in: Wolfe, E.W. & Pierson, T.C. (1995). Volcanic-Hazard Zonation for Mount St. Helens, Washington, 1995. U.S. Geological Survey, Open-File Report 95-497, 12 p., 1 plate. https://doi.org/10.3133/ofr95497
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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Wolfe, E.W. and Pierson, T.C. (1995). Volcanic-Hazard Zonation for Mount St. Helens, Washington, 1995. U.S. Geological Survey, Open-File Report 95-497, 12 p., 1 plate. https://doi.org/10.3133/ofr95497Map Set
https://doi.org/10.3133/ofr95497
Other Maps In Set:
Map Data
Map ID 499 Hazard Process(es) Flowage hazards; Lahars; Lava flows; PDCs; Surges Hazard Zone Presentation Hazard level-focused: All or most hazards are combined by hazard level on a main map panel Temporal Scale Background, or long-term, map Spatial Scale Volcano and surrounding area Publication Format Poster-style map insert in hazard assessment Zonation Method(s) Geologic history; Scenario modeling Zonation Model(s) DAMBRK (Fread 1984; Wetmore & Fread 1991); HYDRAUX (Hansen 1987; DeLong & Schoellhamer 1989) Scenario(s) Considered Season or weather; Size, VEI, or intensity; Style or type Hazard Zone Label(s) Hazard process name Probability Definition(s) Qualitative relative probability (e.g. high-medium-low) Purpose Multiple: intended for multiple purposes including general hazard awareness, planning, and crisis management Audience Multiple audiences (usually the public, civil authorities, and land-use planners) Language(s) English Basemap(s) Contour lines Basemap overlay(s) Street map Diemsionality Planimetric (2D or map) view Color Scheme Categorical/Qualitative