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Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: Rupture process of the main shock of the 2016 Kumamoto earthquake with special reference to damaging ground motions: waveform inversion with empirical Green’s functions

Fig. 4

Fourier spectral ratios between the main shock and EGF events. The gray lines in each panel display the spectral ratios of the main shock with respect to the EGF event at eight target stations, the green line shows their logarithmic mean, and the red line is the fitted curve assuming the omega-square model

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