Definition of fault plane in English:

fault plane


  • The flat surface of rock along which a geological fault occurs.

    ‘one block rests above the fault plane, the other below it’
    • ‘The point on the fault plane where the earthquake rupture is initiated is called the focus or hypocentre.’
    • ‘Upward migration of heated hydrothermal fluids along fault planes may have been aided by seismic pumping.’
    • ‘Fractures are narrow, linear features that are marked by near-vertical fault planes.’
    • ‘The earthquake resulted from horizontal displacement of the ground across a nearly vertical fault plane.’
    • ‘The size of an earthquake is not only a function of the amount of displacement but also the area of the fault plane that ruptures.’