Figure 4.
![Z-component VSG filtered between 0.35 and 0.825 Hz extracted from an OBN located at $[x_i,x_c]=[46.0,16.5]$ km for eight different time lags: (a) 4.0 s, (b) 7.0 s, (c) 10.0 s, (d) 13.0 s, (e) 16.0 s, (f) 19.0 s, (g) 22.0 s and (h) 25.0 s.](https://oup.silverchair-cdn.com/oup/backfile/Content_public/Journal/gji/239/1/10.1093_gji_ggae249/1/ggae249fig4.jpeg?Expires=1748973593&Signature=oJ4LajIWcNxZjyQQ0CDJ3mUCXdZhas3ABuJ9bhmLZjaV9xLb-nwsU87kZYJDXubyWy~hiXyZhGLo8LHTkgsOks-q4Y8AfOea~OPeCCQvDxwvmIZ7s40dTz-oIr0aKAHV9vBtgoHHr9dHz7GIrjxegfK11YflxKTpyvJOOp1GMd7pr5ue4wOFKa0zV79fED~yS~WTFc1ERAt7NrS5D~DGK5gfjueMQEQKNh2gqkLHf0HH35-vUcTjcMO8yQdft3gFBAFpx2PWDLczZcYauHMko5TWt74vVzY0z8Fc6x-1gjgLHvbVcVdvg-yx6iAEEv2gt-mC4BxGsjbeESD8E3zczA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Z-component VSG filtered between 0.35 and 0.825 Hz extracted from an OBN located at |$[x_i,x_c]=[46.0,16.5]$| km for eight different time lags: (a) 4.0 s, (b) 7.0 s, (c) 10.0 s, (d) 13.0 s, (e) 16.0 s, (f) 19.0 s, (g) 22.0 s and (h) 25.0 s.
