Areas that could be affected by directed blasts near Tanaga Island, Alaska
Tanaga, United States, 2007
Figure 19 in: Coombs, M.L., McGimsey, R.G. & Browne, B.L. (2007). Preliminary volcano-hazard assessment for the Tanaga volcanic cluster, Tanaga Island, Alaska. U.S. Geological Survey, Scientific Investigations Report 2007-5094, 41 p., 1 plate. https://doi.org/10.3133/sir20075094
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
Coombs, M.L., McGimsey, R.G. & Browne, B.L. (2007). Preliminary volcano-hazard assessment for the Tanaga volcanic cluster, Tanaga Island, Alaska. U.S. Geological Survey, Scientific Investigations Report 2007-5094, 41 p., 1 plate. https://doi.org/10.3133/sir20075094
https://doi.org/10.3133/sir20075094
Other Maps In Set:
- Preliminary Volcano-Hazard Assessment for the Tanaga Volcanic Cluster, Alaska
- Approximate areas likely to be affected by pyroclastic flows and surges originating at the active vents of the Tanaga volcanic cluster, Tanaga Island, Alaska
- Areas that may be inundated by lava flows during a Tanaga volcanic cluster eruption, Tanaga Island, Alaska
- Areas that could be swept by lahars and floods, Tanaga Island, Alaska
- Areas that could be affected by debris avalanches and rockfalls, Tanaga Island, Alaska
- Areas of potential ashfall during a moderate eruption of a Tanaga cluster volcano, Tanaga Island, Alaska
- Approximate extent of proximal hazard zones from ashfall and ballistics near the Tanaga volcanic cluster, Tanaga Island, Alaska
Map Data
Map ID | 1346 |
---|---|
Hazard Process(es) | Debris avalanches |
Hazard Zone Presentation | Single hazard: A single hazard process is represented 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) | Scenario modeling |
Zonation Model(s) | Energy cone or line (Heim 1932; Sheridan 1979; Sheridan & Malin 1983) |
Scenario(s) Considered | Analog volcano(es); Worst-case |
Hazard Zone Label(s) | Scenario 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) | Hillshade |
Basemap overlay(s) | |
Diemsionality | Planimetric (2D or map) view |
Color Scheme | Symbols and/or lines only |