Fig. 2From: 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 recordsSurface/borehole deconvolution waveforms (DCWs) for a E−W and b N−S components of motion obtained at KiK-net station NIGH17 in different periods (black: reference period, red: period 1, blue: period 2). Lag times of 0.2–2 s are used for the stretching techniqueBack to article page