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Progress in Earth and Planetary Science
Fig. 5 | Progress in Earth and Planetary Science

Fig. 5

From: Spatio-temporal changes in the seismic velocity induced by the 2011 Tohoku-Oki earthquake and slow slip event revealed from seismic interferometry, using ocean bottom seismometer’s records

Fig. 5

Temporal variations in seismic velocity at S09. These figures show the temporal velocity changes calculated from the phase delays at each lapse time: from 10–20 s, 20–30 s, 30–40 s, 40–50 s, 50–60 s, and 60–70 s. The four colors of broken lines correspond to the occurrence of each low-frequency tremor and to the main shock

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