Analytical model for tsunami propagation including source kinematics
Author
dc.contributor.author
Fuentes Serrano, Mauricio
Author
dc.contributor.author
Uribe, Francisco
Author
dc.contributor.author
Riquelme Muñiz, Sebastián
Author
dc.contributor.author
Campos Muñoz, Jaime
Admission date
dc.date.accessioned
2020-07-30T23:21:25Z
Available date
dc.date.available
2020-07-30T23:21:25Z
Publication date
dc.date.issued
2020
Cita de ítem
dc.identifier.citation
Pure and Applied Geophysics June 2020
es_ES
Identifier
dc.identifier.other
10.1007/s00024-020-02528-7
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/176215
Abstract
dc.description.abstract
There are only a few analytical 2+1D models for tsunami propagation, most of which treat tsunami generation from a static deformation field isolated from the kinematics of the rupture. This work examines the behavior of tsunami propagation in a simple setup including a source time function which accounts for a time description of the rupture process on the tsunami source. An analytical solution is derived in the wavenumber domain, which is quickly inverted to space with the fast Fourier transform. The solution is obtained in closed form in the 1+1D case. The inclusion of temporal parameters of the source such as rise time and rupture velocity reveals a specific domain of very slow earthquakes that enhance tsunami amplitudes and produce non-negligible shifts in arrival times. The results confirm that amplification occurs when the rupture velocity matches the long-wave tsunami speed, and the static approximation corresponds to a limit case for (relatively) fast ruptures.
es_ES
Patrocinador
dc.description.sponsorship
Programa de Riesgo Sismico
Comisión Nacional de Investigación Cientifica y Tecnológica (CONICYT)
CONICYT FONDECYT
1170218