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Progress in Earth and Planetary Science
Fig. 7 | Progress in Earth and Planetary Science

Fig. 7

From: Estimation of seismic velocity changes at different depths associated with the 2014 Northern Nagano Prefecture earthquake, Japan (M W 6.2) by joint interferometric analysis of NIED Hi-net and KiK-net records

Fig. 7

Relative velocity changes estimated for the shallow (red circles) and deep (blue circles) zones, where α = 0.78 is used for the latter. Relative velocity changes detected from the Hi-net ACF are shown by black circles. The abscissa indicates the lapse time after the N. Nagano earthquake, plotted with a logarithmic scale. The m values in the figure represent log(t)-recovery speeds, calculated using Eq. (5)

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