What tectonic plate is located west of a trench which reaches a maximum-known depth of 10994 m?
Mariana Plate The Mariana Plate is a small tectonic plate located west of the Mariana Trench and forms the basement of the Mariana Islands. It is separated from the Philippine Sea Plate by a long divergent boundary with numerous transform fault offsets. The boundary between the Mariana and the Pacific Plate to the east is a subduction zone with the Pacific Plate subducting beneath the Mariana. The Mariana Trench forms the southeastern boundary and the Izu-Ogasawara Trench the northeastern boundary.
Moa Plate The Moa Plate was an ancient oceanic plate that formed in the Early Cretaceous south of the Pacific–Phoenix Ridge. The Moa Plate was obliquely subducted beneath the Gondwana margin, and material accreted from it is now part of the Eastern Province of New Zealand.