scholarly journals Tsunami waveform inversion of the 2021 Loyalty Islands earthquake and implications for tsunami forecasting for New Zealand

2021 ◽  
Author(s):  
Aditya Gusman ◽  
William Power ◽  
Jean Roger ◽  
Bill Fry
Keyword(s):  
New Zealand ◽  
Waveform Inversion ◽  
Tsunami Waveform Inversion ◽  
Tsunami Forecasting ◽  
Tsunami Waveform

Bayesian tsunami-waveform inversion with trans-dimensional tsunami-source models

2014 ◽  
Vol 136 (4) ◽  
pp. 2085-2085
Author(s):  
Jan Dettmer ◽  
Jakir Hossen ◽  
Phil R. Cummins ◽  
Stan E. Dosso
Keyword(s):  
Waveform Inversion ◽  
Tsunami Source ◽  
Tsunami Waveform Inversion ◽  
Source Models ◽  
Tsunami Waveform

Tsunami Waveform Inversion of the 2007 Peru (Mw8.1) Earthquake

2014 ◽  
Vol 9 (6) ◽  
pp. 954-960 ◽  
Author(s):  
Cesar Jimenez ◽  
◽  
Nabilt Moggiano ◽  
Erick Mas ◽  
Bruno Adriano ◽  
...  
Keyword(s):  
Waveform Inversion ◽  
Seismic Source ◽  
Least Square Method ◽  
Source Model ◽  
Least Square ◽  
Coseismic Deformation ◽  
Tsunami Propagation ◽  
Tsunami Waveform Inversion ◽  
Seismic Source Model ◽  
Tsunami Waveform

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 isM0= 1.99 × 1021Nm, equivalent to a magnitude ofMw8.1. 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.

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