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Earth, Planets and Space
Fig. 8 | Earth, Planets and Space

Fig. 8

From: Seismic structure of rifting in the Okinawa Trough, an active backarc basin of the Ryukyu (Nansei-Shoto) island arc–trench system

Fig. 8

Seismograms showing shallow Moho reflections below the slope for ECr9. Left: observed record section of OBS016 (top), synthetic seismogram (center), and Vp model (bottom). Right: observed record section of OBS036 (top), calculated travel times on the record section (center), and ray diagram (bottom). These record sections are outputs of the vertical geophone. Predictive deconvolution, 4–20-Hz bandpass filter, and a gain factor proportional to distance were used to enhance signal-to-noise ratios. The reduction velocity is 8.0 km/s. The color of the calculated travel times corresponds to the ray path in the ray diagram. The ray paths are generated at equal distance. An arrow in the Vp model indicates the position of the shallow Moho

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