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Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: Power-law frequency distribution of H/V spectral ratio of seismic signals: Evidence for a critical crust

Fig. 1

Statistical distributions of seismic noise data from station Fabriano–Belvedere (station n. 9 in Table 1). In particular, the black circles are the distributions of: (a) H-component spectral amplitudes; (b) V-component spectral amplitudes; (c) H/V spectral ratio. Continuous lines in (a) and (b) are the best-fit log-normal distributions, while in (c) it is the best-fit line.

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