Map of California showing counties and California Governor’s Office of Emergency Services (Cal OES) administrative regions (coastal, inland, and southern) and mutual aid regions (MARs) I–VI that could be directly affected by volcanic hazards.

California (regional), United States, 2019

Figure 11 in: Mangan, M., Ball, J., Wood, N., Jones, J.L., Peters, J., Abdollahian, N., Dinitz, L., Blankenheim, S., Fenton, J., & Pridmore, C. (2019). California’s exposure to volcanic hazards. U.S. Geological Survey Scientific Investigations Report 2018–5159, v. 1.1, 49 p. https://doi.org/10.3133/sir20185159

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

Mangan, M., Ball, J., Wood, N., Jones, J.L., Peters, J., Abdollahian, N., Dinitz, L., Blankenheim, S., Fenton, J., and Pridmore, C. (2019). California’s exposure to volcanic hazards. U.S. Geological Survey Scientific Investigations Report 2018–5159, v. 1.1, 49 p. https://doi.org/10.3133/sir20185159
https://doi.org/10.3133/sir20185159

Other Maps In Set:

Map Data

Map ID	3566
Hazard Process(es)	Access or danger zone
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	Regional
Publication Format	Figure in a hazard assessment or mitigation plan
Zonation Method(s)	Derived/simplified from another map
Zonation Model(s)
Scenario(s) Considered	Source location or direction
Hazard Zone Label(s)	Access (exclusion, danger, or safe zones)
Probability Definition(s)	No probability definition was discernable from the map
Purpose	Land-use planning: Intended to inform citing of facilities, building restrictions, resource management, and infrastructure development
Audience	Land-use planners, city planners, government officials, etc.
Language(s)	English
Basemap(s)	Administrative boundaries (e.g. county, park, intl.)
Basemap overlay(s)
Diemsionality	Planimetric (2D or map) view
Color Scheme	Single color