Zones of volcanic risk at Mount St. Helens February 1982

St. Helens, United States, 1982

Figure 4 in: Newhall, C.G. (1982). A method for estimating intermediate- and long-term risks from volcanic activity, with an example from Mount St. Helens, Washington. U.S. Geological Survey, Open-File Report 82-396, 59 p. doi: 10.3133/ofr82396

This map was produced by an official agency, but is NOT 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

Newhall, C.G. (1982). A method for estimating intermediate- and long-term risks from volcanic activity, with an example from Mount St. Helens, Washington. U.S. Geological Survey, Open-File Report 82-396, 59 p. https://doi.org/10.3133/ofr82396
https://pubs.usgs.gov/of/1982/0396/report.pdf

Other Maps In Set:

Map Data

Map ID	3501
Hazard Process(es)	Unstated or all hazards
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	Figure in a hazard assessment or mitigation plan
Zonation Method(s)	Event tree
Zonation Model(s)
Scenario(s) Considered	Current conditions; Specific past eruption
Hazard Zone Label(s)	Numeric probability
Probability Definition(s)	Annual numeric probability
Purpose	Scientific interest: Intended for scientific research and general scientific interest; usually published in academic journals
Audience	Scientists (usually in scientific publication)
Language(s)	English
Basemap(s)	Contour lines
Basemap overlay(s)
Diemsionality	Planimetric (2D or map) view
Color Scheme	Symbols and/or lines only
Volcanic Alert Level System

Go to Global Volcanism Program page for St. Helens →