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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Map Set

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/ofr95497
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
Volcanic Alert Level System

Go to Global Volcanism Program page for St. Helens →