Reanalysis of the 1761 transatlantic tsunami

Wronna, Martin; Baptista, Maria Ana; Miranda, Jorge Miguel

doi:https://doi.org/10.5194/nhess-19-337-2019

Articles | Volume 19, issue 2

https://doi.org/10.5194/nhess-19-337-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-19-337-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 2

Research article

|

13 Feb 2019

Research article |

| 13 Feb 2019

Reanalysis of the 1761 transatlantic tsunami

Martin Wronna, Maria Ana Baptista, and Jorge Miguel Miranda

Data sets

NSWING (Non-linear Shallow Water model With Nested Grids) J. M. Miranda and J. Luis https://github.com/joa-quim/NSWING

Short summary

We investigate the source of the 1761 earthquake and tsunami. The reanalysis of the tsunami travel times agrees with an earlier suggested source area. We check the geodynamic setting of the area and place a fault as an extension to an identified fault and use numerical modelling to distinguish between two candidate sources. One of our theories is compatible with the geodynamic setting and reproduces well the observed tsunami parameters.