seism

Definitions of seism
  1. noun
    shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity
    synonyms: earthquake, quake, temblor
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    seismic disturbance, shock
    an instance of agitation of the earth's crust
    earth tremor, microseism, tremor
    a small earthquake
    seaquake, submarine earthquake
    an earthquake at the sea bed
    aftershock
    a tremor (or one of a series of tremors) occurring after the main shock of an earthquake
    foreshock
    a tremor preceding an earthquake
    type of:
    geological phenomenon
    a natural phenomenon involving the structure or composition of the earth
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