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| Ben·i·off zone [ bénnee àwf zn ] (plural Ben·i·off zones) |
noun |
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| Definition: |
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continental edge where earthquakes originate: a steeply-angled region along the edge of a continental plate where many earthquakes originate and the ocean floor is thought to descend
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| [Mid-20th century. After V. Hugo Benioff (1899-1968), U.S. seismologist] |
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