Simplified volcano hazards map of Three Sisters, Oregon

Three Sisters, United States, 2014

Scott, W.E., Iverson, R.M., Schilling, S.P., Fisher, B.J., Driedger, C.L., Ramsey, D.W., & Faust, L.M. (2014). Simplified volcano hazards map of Three Sisters, Oregon. U.S. Geological Survey. Three Sisters, OR Simplified Hazards Map. https://www.usgs.gov/media/images/three-sisters-or-simplified-hazards-map (Modified from: U.S. Geological Survey, Open-File Report 99-437)

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 ID	1135
Hazard Process(es)	Ballistics; Lahars; Lava flows; PDCs; Proximal hazards; Regional hazards; Rockfalls; Tephra fall
Hazard Zone Presentation	Grouped by location (e.g. proximal/distal zones) on a main map panel
Temporal Scale	Background, or long-term, map
Spatial Scale	Volcano and surrounding area
Publication Format	Map on website
Zonation Method(s)	Derived/simplified from another map
Zonation Model(s)
Scenario(s) Considered	Analog volcano(es); Composition; Size, VEI, or intensity; Source location or direction
Hazard Zone Label(s)	Hazard process name; Location or source name
Probability Definition(s)	Qualitative relative probability (e.g. high-medium-low)
Purpose	Hazard awareness: Intended for educating the audience about the extent and probability of volcanic hazard
Audience	General public and/or media
Language(s)	English
Basemap(s)	Hillshade
Basemap overlay(s)	Street map
Diemsionality	Planimetric (2D or map) view
Color Scheme	Red to Yellow
Volcanic Alert Level System

Go to Global Volcanism Program page for Three Sisters →