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Benioff zone
Benioff zone (ˈbɛnɪəf) n (Geological Science) a long narrow region, usually adjacent to a continent, along which earthquake foci lie on a plane which dips downwards at about 45° and along which the oceanic lithosphere is thought to be descending into the earth's interior. Compare subduction zone[C20: named after Hugo Benioff (1899–1968), American seismologist, who first discovered the phenomenon]Benioff zone
Benioff zone[′ben·ē·ȯf ‚zōn] (geophysics) A zone of earthquake hypocenters distributed on well-defined planes that dips from a shallow depth into the earth's mantle to depths as great as 420 miles (700 kilometers). Also known as Benioff-Wadati zone; Wadati-Benioff zone. |