Definitions of seism

n shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity

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
a tremor (or one of a series of tremors) occurring after the main shock of an earthquake
a tremor preceding an earthquake
Type of:
geological phenomenon
a natural phenomenon involving the structure or composition of the earth

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