Understanding mariners’ tsunami information needs and decision-making contexts: A post-event case study of the 2022 Tonga eruption and tsunami
Summary: The 15 January 2022, Hunga Tonga Hunga Ha’apai volcanic eruption generated a tsunami that spread across the Pacific Ocean and prompted a tsunami advisory in Aotearoa New Zealand (NZ). Concurrently, a severe weather warning was issued for ex-Tropical Cyclone Cody, passing east of NZ and prod...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004225000616 |
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| author | Sara E. Harrison Rachel V. Lawson Lucy Kaiser Sally H. Potter David Johnston |
| author_facet | Sara E. Harrison Rachel V. Lawson Lucy Kaiser Sally H. Potter David Johnston |
| author_sort | Sara E. Harrison |
| collection | DOAJ |
| description | Summary: The 15 January 2022, Hunga Tonga Hunga Ha’apai volcanic eruption generated a tsunami that spread across the Pacific Ocean and prompted a tsunami advisory in Aotearoa New Zealand (NZ). Concurrently, a severe weather warning was issued for ex-Tropical Cyclone Cody, passing east of NZ and producing heightened swells along the North Island coast. Numerous boats were significantly damaged or sunk in Tūtūkākā Marina, Northland, NZ. Mariners raised concerns over the perceived lack of tsunami warnings. We interviewed mariners in Tūtūkākā to understand their experiences on the night of 15 January 2022 and their needs and expectations of tsunami warnings. The complexity of the multi-hazard event made it difficult to assess and convey the severity of the expected tsunami. We found that mariners require information about expected wave height and arrival time, weather, and sea conditions to inform their anticipatory mitigation actions. This event shows the importance of multi-hazard risk assessments to produce effective warnings and action advice. |
| format | Article |
| id | doaj-art-4d50312b9b6f4ed88bb6a1381a4eceef |
| institution | Kabale University |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-4d50312b9b6f4ed88bb6a1381a4eceef2025-01-31T05:12:12ZengElsevieriScience2589-00422025-02-01282111801Understanding mariners’ tsunami information needs and decision-making contexts: A post-event case study of the 2022 Tonga eruption and tsunamiSara E. Harrison0Rachel V. Lawson1Lucy Kaiser2Sally H. Potter3David Johnston4Society & Infrastructure Department, GNS Science, Lower Hutt 5040, New Zealand; Corresponding authorSociety & Infrastructure Department, GNS Science, Auckland 1142, New ZealandSociety & Infrastructure Department, GNS Science, Lower Hutt 5040, New Zealand; Joint Centre for Disaster Research, School of Psychology, Massey University, Wellington 6011, New ZealandSociety & Infrastructure Department, GNS Science, Tauranga 3110, New Zealand; Canary Innovation Ltd., Tauranga 3110, New ZealandJoint Centre for Disaster Research, School of Psychology, Massey University, Wellington 6011, New ZealandSummary: The 15 January 2022, Hunga Tonga Hunga Ha’apai volcanic eruption generated a tsunami that spread across the Pacific Ocean and prompted a tsunami advisory in Aotearoa New Zealand (NZ). Concurrently, a severe weather warning was issued for ex-Tropical Cyclone Cody, passing east of NZ and producing heightened swells along the North Island coast. Numerous boats were significantly damaged or sunk in Tūtūkākā Marina, Northland, NZ. Mariners raised concerns over the perceived lack of tsunami warnings. We interviewed mariners in Tūtūkākā to understand their experiences on the night of 15 January 2022 and their needs and expectations of tsunami warnings. The complexity of the multi-hazard event made it difficult to assess and convey the severity of the expected tsunami. We found that mariners require information about expected wave height and arrival time, weather, and sea conditions to inform their anticipatory mitigation actions. This event shows the importance of multi-hazard risk assessments to produce effective warnings and action advice.http://www.sciencedirect.com/science/article/pii/S2589004225000616Earth sciencesGeologyGeographyHuman GeographyResearch methodology social sciences |
| spellingShingle | Sara E. Harrison Rachel V. Lawson Lucy Kaiser Sally H. Potter David Johnston Understanding mariners’ tsunami information needs and decision-making contexts: A post-event case study of the 2022 Tonga eruption and tsunami iScience Earth sciences Geology Geography Human Geography Research methodology social sciences |
| title | Understanding mariners’ tsunami information needs and decision-making contexts: A post-event case study of the 2022 Tonga eruption and tsunami |
| title_full | Understanding mariners’ tsunami information needs and decision-making contexts: A post-event case study of the 2022 Tonga eruption and tsunami |
| title_fullStr | Understanding mariners’ tsunami information needs and decision-making contexts: A post-event case study of the 2022 Tonga eruption and tsunami |
| title_full_unstemmed | Understanding mariners’ tsunami information needs and decision-making contexts: A post-event case study of the 2022 Tonga eruption and tsunami |
| title_short | Understanding mariners’ tsunami information needs and decision-making contexts: A post-event case study of the 2022 Tonga eruption and tsunami |
| title_sort | understanding mariners tsunami information needs and decision making contexts a post event case study of the 2022 tonga eruption and tsunami |
| topic | Earth sciences Geology Geography Human Geography Research methodology social sciences |
| url | http://www.sciencedirect.com/science/article/pii/S2589004225000616 |
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