 To its east is the Gorda Plate, which together with the Juan de Fuca Plate to its north, is what remains of the once-vast Farallon Plate.These two oceanic plates are currently moving east, subducting underneath the North American Plate in what is known as the Cascadia Subduction Zone.To the west and south of the ridge is the Pacific Plate, which is currently moving west diverging from the Gorda Plate.