Definition of hypocenter in US English:



  • 1The underground focus point of an earthquake.

    Compare with epicenter
    • ‘The Richter scale measures the amount of seismic energy released from the hypocenter of the earthquake; it is not used to express damage.’
    • ‘Only two small communities are located within 100 km of the hypocenter (which this bulletin says is 10 km underground, not 5).’
    • ‘Magnitude is a measure of the energy released by a quake at its hypocenter, the point underground where movement first occurs along a fault.’
  • 2

    another term for ground zero