Technical Report: Tonga volcano eruption

Narvaez, Liliana, Szarzynski, Joerg and Sebesvari, Zita (2022). Technical Report: Tonga volcano eruption. Interconnected Disaster Risks 2021/2022. United Nations University - Institute for Environment and Human Security (UNU-EHS).

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  • Sub-type Research report
    Author Narvaez, Liliana
    Szarzynski, Joerg
    Sebesvari, Zita
    Title Technical Report: Tonga volcano eruption
    Series Title Interconnected Disaster Risks 2021/2022
    Publication Date 2022-08-31
    Place of Publication Bonn
    Publisher United Nations University - Institute for Environment and Human Security (UNU-EHS)
    Pages 26
    Language eng
    Abstract On 15 January 2022, the Hunga-Tonga-Hunga-Ha'apai volcano eruption was felt across the Pacific Ocean and beyond, releasing energy equivalent to hundreds of Hiroshima nuclear explosions and creating supersonic air pressure waves that were observed from space. In the archipelago Kingdom of Tonga, the ashfall, tsunami and shock waves caused widespread devastation on several islands. The only fibre-optic cable that connects the islands with the rest of the world was severely damaged, leaving the entire country offline for more than three weeks. The case the Hunga Tonga-Hunga Ha’apai volcano eruption showed that the inability to “be online” becomes a vulnerability in the context of extreme events. This technical background report for the 2021/2022 edition of the Interconnected Disaster Risks report analyses the root causes, drivers, impacts and potential solutions for the Tonga volcano eruption through a forensic analysis of academic literature, media articles and expert interviews.
    Copyright Holder United Nations University - Institute for Environment and Human Security (UNU-EHS)
    Copyright Year 2022
    Copyright type Creative commons
    DOI 10.53324/YSXA5862
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    Created: Wed, 14 Dec 2022, 21:21:43 JST by Aarti Basnyat on behalf of UNU EHS