Articles | Volume 20, issue 7
Nat. Hazards Earth Syst. Sci., 20, 2055–2065, 2020
Nat. Hazards Earth Syst. Sci., 20, 2055–2065, 2020

Research article 28 Jul 2020

Research article | 28 Jul 2020

Deep submarine landslide contribution to the 2010 Haiti earthquake tsunami

Adrien Poupardin et al.

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Cited articles

Abrahamson, N. and Silva, W.: Summary of the Abrahamson & Silva NGA Ground motion relations, Earthq. Spectra, 24, 67–97, 2008. 
Assier-Rzadkiewicz, S., Heinrich, P., Sabatier, P., Savoye, B., and Bourillet, J. F.: Numerical modelling of a landslide-generated tsunami: the 1979 Nice event, Pure Appl. Geophys., 157, 1707–1727, 2000. 
Boore, D. M.: NGA08_GM_TMR, Next generation attenuation ground motions for specified period (T), magnitude, and distance (R) code, revised version, available at: (last access: May 2020), 2012. 
Boore, D. M. and Atkinson, G. M.: Ground-motion prediction equations for the averaged horizontal component of PGA, PGV, and 5 %-damped PSA at spectral periods between 0.01 s and 10.0 s, Earthq. Spectra, 24, 99–138, 2008. 
Calais, E., Freed, A., Mattioli, G., Amelung, F., Jonsson, S., Jansma, P., Hong, S. H., Dixon, T., Prepetit, C., and Momplaisir, R.: Transpressional rupture of an unmapped fault during the 2010 Haiti earthquake, Nat. Geosci., 3, 794–799, 2010. 
Short summary
The Mw 7 Haiti earthquake in 2010 was accompanied by local tsunamis that caused fatalities and damage to coastal infrastructure. Earthquakes alone could not explain all observations in Hispaniola Island. We suspected that a big submarine landslide occured and generated the 3 m high waves observed near Jacmel and Pedernales. We identify a landslide scar 30 km from the epicenter and at a depth of 3500 m and we simulate the corresponding tsunami which gives results very close to observations.
Final-revised paper