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| Titel: |
Wave erosion on the southeastern coast of Australia: Tsunami propagation modelling |
| Auteur: |
Jones, A. T. Mader, C. L. |
| Verschenen in: |
Australian journal of earth sciences |
| Paginering: | Jaargang 43 (1996) nr. 4 pagina's 479-483 |
| Jaar: |
1996-08 |
| Inhoud: |
Catastrophic wave erosion on the southeastern coast of Australia has been attributed to a Hawaiian tsunami generated by the Alika 2 debris avalanche approximately 105 000 years ago. We examine the likelihood of a Hawaiian underwater mega-landslide as the tsunami's source through numerical tsunami propagation modelling, performed using the SWAN code which solves the non-linear long-wave equations. The tsunami generation and propagation was modelled using twenty minute ETOPO5 topography for the Pacific Basin. Results for a hypothetical avalanche in the Hawaiian Islands ten times the volume of the Alika 2 debris avalanche show that Hawaii cannot be the source for a 15 m wave on the Australian coast. An asteroid impact in the central Pacific is examined as an alternative source for the erosional wave. Modelling results indicate that the impact of a 6 km asteroid could generate significant wave run-up along the southeastern coast of Australia. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 11 van 11 gevonden artikelen
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