... the edge of the Yakutat microplate as it subducts at a shallow angle directly beneath the North American plate, notably without a separating mantle wedge typically seen in many subduction zones.
A groundbreaking study in Science Advances reveals that Earth's tectonic plates are breaking apart under the Cascadia subduction zone ... The findings give crucial insights into how subduction zones eventually fail and shut down.
The Cascadia Subduction Zone isn't shutting down—but it's more complicated than previously thought (2026, April 10) retrieved 10 April 2026 from https.//phys.org/news/2026-04-cascadia-subduction-zone-isnt-complicated.html.