Earthquake Glossary - brittle-ductile boundary

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All Terms

  • brittle-ductile boundary

    The depth in the crust where the crust changes from being brittle (tending to break) above, to being ductile (tending to bend) below. Most earthquakes occur in the brittle portion of the crust above the brittle-ductile boundary.


    brittle-ductile boundary

    Sketch of crust and mantle.