Fig. 3From: 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 recordsAutocorrelation functions (ACFs) for E−W component data from Hi-net station N.MKGH in different periods (black: reference period, red: period 1, blue: period 2). Lag times of 4–12 s are used for the stretching techniqueBack to article page