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Volcanic Hazard Map for the Hunga Volcano 2021

Hunga Tonga-Hunga Ha'apai, Tonga, 2022

Figure 3 in: Tonga Geological Services. (2022). Volcanic Hazard Map for the Hunga Volcano 2021. Facebook post 2022-01-03. https://www.facebook.com/tongageologicalservice/posts/228114139479654.



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 Data

Map ID3382
Hazard Process(es)Ballistics; Debris avalanches; Explosion hazards, unspecific; Gas (text only); Lava dome-related hazards; Laze; Surges; Tephra fall; Tsunami; Vog; Water disturbances or marine hazards
Hazard Zone PresentationHazard level-focused: All or most hazards are combined by hazard level on a main map panel
Temporal ScaleCrisis, or short-term, map (hours to decades)
Spatial ScaleVolcano and surrounding area
Publication FormatPart of an information statement, bulletin, or other alert product
Zonation Method(s)Geologic history
Zonation Model(s)
Scenario(s) ConsideredNo scenarios were discernable from the map
Hazard Zone Label(s)Hazard process name; Qualitative relative probability (e.g. high-medium-low)
Probability Definition(s)Qualitative relative probability (e.g. high-medium-low)
PurposeHazard awareness: Intended for educating the audience about the extent and probability of volcanic hazard
AudienceGeneral public and/or media
Language(s)English
Basemap(s)Digital Elevation Model (DEM)
Basemap overlay(s)Hillshade
DiemsionalityPlanimetric (2D or map) view
Color SchemeRed to Green
Volcanic Alert Level System
Go to Global Volcanism Program page for Hunga Tonga-Hunga Ha'apai →