A geometric technique for relocating hotspots and refining absolute plate motions

An age-independent, geometric relationship is presented that links hotspots to the seamounts which they produce, and so permits the use of undated seamounts to refine the motion of tectonic plates. This technique has the potential to rigorously assess hotspot fixity and to locate extinct hotspots. The present application of this method points to a recent change in Pacific plate motion, and suggests a relocation of the Louisville hotspot to the Hollister ridge, south of the Eltanin fracture zone.