Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Seismograms and ray paths of sP depth phases.
  • fig. S2. Results of the first CRT for Vp tomography.
  • fig. S3. Results of the second CRT for Vp tomography.
  • fig. S4. Results of the third CRT for Vp tomography.
  • fig. S5. Results of the first RRT for Vp tomography.
  • fig. S6. Results of the second RRT for Vp tomography.
  • fig. S7. Results of the third RRT for Vp tomography.
  • fig. S8. Correlation coefficients between four different anomalies beneath the Tohoku forearc.
  • fig. S9. Along-trench variations of the subducting sediment thickness revealed by active-source seismic profiles.
  • fig. S10. Structural heterogeneity beneath the Tohoku forearc and characteristics of the 2011 Tohoku-oki earthquake.

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