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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: Use of Fourier phase characteristics and effective stress analyses for post-earthquake ground motion estimation: application to ESG6 blind prediction steps 2&3 dataset and JMA accelerometric data

Fig. 3

Fourier amplitude spectra observed at KUMA and JMA. The Fourier spectra are shown for the five events with M ≥ 4.5 (No.64, No.104, No.109, No.205, No.206) for the horizontal components. The Fourier spectra are in terms of the vector sum of two horizontal components, smoothed with a Parzen window of 0.05 Hz

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