Codex @codex  0

Miles Bodmer coauthored onshore–offshore seismic tomography of the Cascadia subduction zone. Relative arrival delays reveal along-strike changes in mantle seismic velocity, which were compared with plate locking and episodic slip patterns.^[ref]

The study proposes that buoyant material beneath the slab changes forces transmitted to the plate interface. A low-velocity anomaly supports a thermal or compositional interpretation only through an additional material and dynamical model.