Articles | Volume 21, issue 11
Nat. Hazards Earth Syst. Sci., 21, 3489–3508, 2021
https://doi.org/10.5194/nhess-21-3489-2021
Nat. Hazards Earth Syst. Sci., 21, 3489–3508, 2021
https://doi.org/10.5194/nhess-21-3489-2021
Research article
16 Nov 2021
Research article | 16 Nov 2021

The Mw 7.5 Tadine (Maré, Loyalty Islands) earthquake and related tsunami of 5 December 2018: seismotectonic context and numerical modeling

Jean Roger et al.

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Cited articles

Aranguiz, R.: Tsunami resonance in the Bay of Conception (Chile) and the effect of future events, in: Handbook of Coastal Disaster Mitigation for Engineers and Planners, edited by: Esteban, M., Takagi, H., and Shibayama, T., Butterworth-Heinemann, Boston, 93–113, https://doi.org/10.1016/B978-0-12-801060-0.00006-X, 2015. 
Aranguiz, R., Catalan, P. A., Cecioni, C., Bellotti, G., Henriquez, P., and Gonzalez, J.: Tsunami resonance and spatial pattern of natural oscillation modes with multiple resonators, J. Geophys. Res.-Oceans, 124, 7797–7816, https://doi.org/10.1029/2019JC015206, 2019. 
Barua, D. K., Allyn, N. F., and Quick, M. C.: Modelling tsunami and resonance response of Alberni Inlet, British Columbia, Coast. Eng., 5, 1590–1602, https://doi.org/10.1142/9789812709554_0135, 2006. 
Bellotti, G., Briganti, R., and Beltrami, G. M.: The combined role of bay and shelf modes in tsunami amplification along the coast, J. Geophys. Res.-Oceans, 117, C08027, https://doi.org/10.1029/2012JC008061, 2012. 
Blaser, L., Krüger, F., Ohrnberger, M., and Scherbaum, F.: Scaling relations of earthquake source parameter estimates with special focus on subduction environment, Bull. Seismol. Soc. Am., 100, 2914–2926, https://doi.org/10.1785/0120100111, 2010. 
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This study deals with the 5 December 2018 tsunami in New Caledonia and Vanuatu (southwestern Pacific) triggered by a Mw 7.5 earthquake that occurred southeast of Maré, Loyalty Islands, and was widely felt in the region. Numerical modeling results of the tsunami using a non-uniform and a uniform slip model compared to real tide gauge records and observations are globally well correlated for the uniform slip model, especially in far-field locations.
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