Figure 3.
![Representative Z-component VSG time slice extracted at 10.0 s for a virtual source at an OBN station located at $[x_i,x_c]=[46.0,16.5]$ km filtered to eight different frequency bands: (a) 0.008–0.04 Hz, (b) 0.008–0.075 Hz, (c) 0.01–0.15 Hz, (d) 0.075–0.275 Hz, (e) 0.17–0.475 Hz, (f) 0.30–0.65 Hz, (g) 0.35–0.825 Hz and (h) 0.50–1.0 Hz.](https://oup.silverchair-cdn.com/oup/backfile/Content_public/Journal/gji/239/1/10.1093_gji_ggae249/1/ggae249fig3.jpeg?Expires=1750073529&Signature=B6NtkdxIpZwgAPhsnCt9oW-3elT8dmJJxEI6bT6i-Iw~s~Tq-QaVoNRhhjaFPLFiyBC9aPne-rhnEVsvw-qam5cb-zZGXn0Y~zvdvRgWHnwCD7Qd5S4cleruxvnBJHixWf1B4o6-AzWpuTzvgQ4xXZ0N~aH1PqXEpOdemP5qEgkiKKIxVH0AnHsqySCH3WZ-giaus8Ri8aCOygEzOiN5Rse4I4wDZSkmZ8ek45tzHmTHccxpxN1AjBirQPabqjqjZXyDqvYF11n4wEphzLwz0RCuBHCQdb0HOFfkSmgk3jxzRIPP1YqIUSal2ZqqYAOUP1PX8sTCpRgyOxBlnitRXA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Representative Z-component VSG time slice extracted at 10.0 s for a virtual source at an OBN station located at |$[x_i,x_c]=[46.0,16.5]$| km filtered to eight different frequency bands: (a) 0.008–0.04 Hz, (b) 0.008–0.075 Hz, (c) 0.01–0.15 Hz, (d) 0.075–0.275 Hz, (e) 0.17–0.475 Hz, (f) 0.30–0.65 Hz, (g) 0.35–0.825 Hz and (h) 0.50–1.0 Hz.
