Extended Data Fig. 1: Seismicity and location of the subducting slab at the Puysegur plate boundary.
From: Stress transition from horizontal to vertical forces during subduction initiation
Seismicity outlines a clear Benioff zone along the Puysegur margin. Earthquakes from the global Centroid Moment Tensor and GeoNET catalogs. Depth of seismic events are not well resolved offshore. The basal leading edge of the subducting slab is shown as cyan lines. Beneath Fiordland, the present day slab edge is well defined from the Benioff zone and inferred in the offshore domain. The ancient leading edge of the slab is updated after Sutherland et al. 37 and inferred from surface effects in Fiordland, as evidenced by thermochronology data. For a reconstruction of the unfolded slab position see Sutherland et al. 24.
