11:45 AM - 12:00 PM
[SSS02-10] Characteristics and waveform simulation for dynamic rupture model of the 2011 Tohoku earthquake with deep SMGAs
Keywords:2011 Tohoku earthquake, dynamic simulation, slip reactivation
Moreover, this model also reproduces qualitatively the multi-seismic wave front observed from the strong ground motion and GPS data along the Japanese coast. We take the seismic station (FKS011) and compare the recorded velocity waveform and our 1D synthetic between 20 to 100 seconds period (see Figure). The fitting is remarkable but there are other stations less accurate. For a set of coastal hard rock sites we perform 3D FDM simulations for the JIVSM velocity model and periods 5 to 20sec, and confirm that developed dynamic model reproduce observed wave-packets as amplitude, spectral content and arrival time. Overall, we could resemble the rupture process of the Tohoku earthquake and reproduce qualitatively the recorded multi-seismic wave front detected by the KNET and Kik-net networks.
Acknowledgements. Seismic waveform data of the KiK-net and KNET were used. We are indebt to J.-P. Ampuero and K. Miyakoshi for fruitful discussions. This study was based on the 2014 research project 'Improvement for uncertainty of strong ground motion prediction' by NRA (Nuclear Regulation Authority).