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Oilfield Glossary
Oilfield Glossary
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Wadati-Benioff zone

1. n. [Geology]
A zone of the upper mantle in which earthquakes occur when a lithospheric plate is subducted, named in honor of seismologists Kiyoo Wadati and Hugo Benioff. The dip of the Wadati-Benioff zone coincides with the dip of the subducting plate. The Wadati-Benioff zone extends to a depth of about 700 km [435 miles] from the Earth's surface.
Alternate Form: Benioff zone