Tsunami waveform inversion of the 2007 peru (Mw8.1) earthquake

Cesar Jimenez, Nabilt Moggiano, Erick Mas, Bruno Adriano, Yushiro Fujii, Shunichi Koshimura

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10 Scopus citations


An earthquake shook the central-southern coast of Peru on August 15, 2007, as a coseismic effect a tsunami was generated, which flooded some villages and beach resorts and killed 3 people. From the analysis and signal processing of 10 tidal records, we obtained the parameters of the seismic source and the initial coseismic deformation through an inversion modeling, in which the synthetic signals are compared with the observed signals by a non-negative least square method. The maximum slip located on the southern part of the rupture geometry is 7.0 m. The calculated scalar seismic moment is M0 = 1.99× 1021 Nm, equivalent to a magnitude of Mw8.1. We used these parameters to obtain a heterogeneous seismic source model, which was used as initial condition to simulate the tsunami propagation and inundation. We used the field survey observations to validate our source model.

Original languageEnglish
Pages (from-to)954-960
Number of pages7
JournalJournal of Disaster Research
Issue number6
StatePublished - 1 Dec 2014
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2014 Fuji Technology Press. All rights reserved.


  • Inversion
  • Numerical simulation
  • Seismic source


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