Tsunami Waveform Inversion of the 2007 Peru (M<sub>w</sub>8.1) Earthquake
-
- Jimenez Cesar
- Universidad Nacional Mayor de San Marcos Direccion de Hidrografia y Navegacion, DHN
-
- Moggiano Nabilt
- Direccion de Hidrografia y Navegacion, DHN
-
- Mas Erick
- International Research Institute of Disaster Science, Tohoku University
-
- Adriano Bruno
- International Research Institute of Disaster Science, Tohoku University
-
- Fujii Yushiro
- International Institute of Seismology and Earthquake Engineering, Building Research Institute
-
- Koshimura Shunichi
- International Research Institute of Disaster Science, Tohoku University
Bibliographic Information
- Other Title
-
- Tsunami Waveform Inversion of the 2007 Peru (Mw8.1) Earthquake
- Tsunami Waveform Inversion of the 2007 Peru (<i>M<sub>w</sub></i>8.1) Earthquake
Search this article
Abstract
<p>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.</p>
Journal
-
- Journal of Disaster Research
-
Journal of Disaster Research 9 (6), 954-960, 2014-12-01
Fuji Technology Press Ltd.
