Fig. 4.

(a) Coherence maps from the preseismic pair, covering Tokyo Bay (I1 in Table 1), (b) the coseismic pair, covering Tokyo Bay (I3 in Table 1), (c) the preseismic pair, covering the Tone River (I2 in Table 1), (d) the coseismic pair, covering the Tone River (I4 in Table 1).