Product ID: 3442 - English
Published: 21 Jan, 2022
GLIDE: VO20220115TON


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This map illustrates the impact of the Hunga Tonga-hunga Ha'apai volcanic eruption and the subsequent tsunami in 'Ohonoua town ('Eua Prope district, Tonga) and damage assessment as detected from Pleiades images acquired on 20 January 2022 at 11:20 local time and 21 January 2022 at 11:13 local time.
Among the 2,028 structures were identified, of which 1,231 structures are in cloud-free areas. Amongst the analyzed 1,231 structures, 54 were identified as damaged or destroyed, three as potentially damaged structures, and 1,174 buildings appeared without any visible damage from space imagery analysis. Six road obstacles were also identified in the cloud-free areas. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).
Satellite Data (Post-event): Pleiades
Imagery Date: 19 &20 Jan 2022, 21:20 &21:13 UTC
Resolution: 50 cm
Copyright: © CNES (2022), Distribution Airbus DS.
Source: Airbus DS
Satellite Data (Pre-event): Worldview-3
Imagery Dare: 14 Sep. 2021
Resolution: 50 cm 
Copyright: © DigitalGlobe, Inc. (2022)
Source: USGS
Boundary data: Secretariat of the Pacific Community, Statistics for Development Division
Populated place: OpenStreetMap
Building footprint: OpenStreetMap
Background: ESRI Basemap
Analysis: United Nations Satellite Centre (UNOSAT)
Production: United Nations Satellite Centre (UNOSAT)