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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Difference of horizontal-to-vertical spectral ratios of observed earthquakes and microtremors and its application to S-wave velocity inversion based on the diffuse field concept

Fig. 6

Best-fit model (red line) in comparison with the observed EHVR (black line) in the left panel, convergence with respect to the generation in the middle panel, and shallow (< 50 m) and deep (< 3 km) part of the obtained S-wave velocities at a K-NET site, EHM012 in the two right panels. Green lines in the two right panels are S-wave velocities of the initial model, while blue lines are those for ten individual trials with different initial genes. The red line represents the best model among these ten trials

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