Supplemental Material: Anisotropy-revealed change in hydration along the Alaska subduction zone

Supplemental Tables S1 (individual split measurements), S2 (individual null measurements), and S3 (ocean-bottom station orientations), along with Figures S1–S6 (plots of seismicity in the AACSE region, individual splitting results, particle motions, examples of splitting measurements, station orientations, and earthquakes used in this study).