= Hugo Benioff
{c}
{title2=1899-1968}
{wiki}
= Victor Hugo Benioff
{c}
{synonym}
<Hugo Benioff> investigated whether sequences of <earthquakes> could reveal large faults extending far below the <Earth>'s surface. His 1949 study used accumulated estimates of elastic-rebound strain increments to compare events as possible movements on one structure. He interpreted the Tonga–Kermadec and South American sequences as activity on great inclined faults reaching roughly $650\,\mathrm{km}$ depth. The observations helped establish the deep geometry later associated with a <Wadati-Benioff zone>; the original fault interpretation belongs to the historical development preceding modern <subduction> theory.<Seismic evidence for the fault origin of oceanic deeps by Hugo Benioff>[1949 paper abstract, strain-increment method and inclined deep structures]{ref}
A <seismology> researcher associated with deep <earthquake> distributions, the <Wadati-Benioff zone> and <seismograph> development.
\Image[https://divisions-prod-assets.resources.caltech.edu/seismolab/images/Hugo-Benioff.9d32f65d.max-250x250.jpg]
{title=Hugo Benioff in 1964, portrait hosted by the Caltech Seismological Laboratory}
{width=220}
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