Fig. 4

a) Occurrence of wavelet power of velocities vs. normalised broadband intensity Ibb(t − 77.5 s) / Ibb,av at five time steps earlier than the measurement of the velocities. Solid: in period range 150–190 s, dashed: in range 110–150 s, dash-dotted: in range 30–110 s. b) Ratio of power above GR to that above IGR.
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