Product ID: 3433 - English
Published: 17 Jan, 2022
GLIDE: VO20220115TON


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Status: Affected structures and affected facilities observed in all island after tsunami triggered by volcanic eruption
Further action(s): Continue monitoring
Hunga Tonga - Hunga Ha'apai
Collapse of the caldera of the Hunga Tonga - Hunga Ha?apai Volcano after the eruption of the 15 January 2022;
Surface of the island 285 ha (08 December 2021)
Nuku'alofa Island
Ash deposits observed in Tongatapu division as of 16 Jan. 2022;
Water invasion evidence, affected structures and inundated road observed in Tongatapu division as of 16 Jan. 2022;
Ash deposits, inundated runway and potentially affected structures observed in Fua'amotu Airport, Tatakamotonga district, Tongatapu division as of 16 Jan 2022;
Uoleva Island
Ash deposits, water invasion evidence, affected structures and inundated road observed in Lifuka village & Pangai town, Pangai district, Ha'apai division as of 16 Jan. 2022;
Uiha Island
Ash deposits observed in Uhia Island as of 16 Jan. 2022;
Water invasion evidence, affected roads and affected structures observed in 'Uhia village,  'Uhia district, Ha'apai division as of 16 Jan 2022;
No visible  damage observed in Felemea Village, 'Uiha district, Ha'apai division observed as of 16 Jan 2022;
Nomuka Island
Ash deposits, observed along the shoreline, affected structures and affected road observed in Nomuka Village, Mu'omu'a District, Ha'apai Division as of 16 Jan 2022.
(1) Satellite Image (Post-event)
Pléiades : 16 Jan 2022
Resolution: 50 cm 
Copyright : © CNES (2021), distribution Airbus D&S 
Source : Airbus Defense and Space 
(2) Satellite Image (Pre-event)
Sentinel-2 : 8 Dec 2021
Resolution: 10 m 
Copyright: Contains modified Copernicus Sentinel Data [2021]
Source: ESA
ESRI Basemap
(3) Ancillary data
Administrative boundaries: Secretariat of the Pacific Community, Statistics for Development Division
Populated place: OpenStreetMap
Analysis: United Nations Satellite Centre (UNOSAT)
Production: United Nations Satellite Centre (UNOSAT)