Science Advances

Supplementary Materials

This PDF file includes:

  • Fig. S1. SV RFs for station PGC.
  • Fig. S2. Harmonic components for station PGC.
  • Fig. S3. Cross-correlation coefficients between observed and predicted RFs.
  • Fig. S4. Example calculation of strike and dip angles at each station location.
  • Fig. S5. Estimated S-wave velocity contrast across the top and bottom of the LVL.
  • Fig. S6. GPS data used in the determination of ETS event times.
  • Fig. S7. Changes in δvs across the top and bottom boundaries of the LVL.
  • Table S1. Strike and dip angles of the plate interface at each station location.
  • Table S2. Estimated start, end, and midpoint dates of ETS events from 1994 to 2019.
  • Table S3. P values from the t tests for the change in CC coefficients and δvs values following ETS events measured at station PGC.

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