earthquake has definitions from the field of geology
1
[ noun ] (geology) shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity

Synonyms

quake seism temblor

Used in print

(Frank Oppenheimer, "Science and Fear-- A Discussion...)

Even in domains where detailed and predictive understanding is still lacking , but where some explanations are possible , as with lightning and weather and earthquakes , the appropriate kind of human_action has been more adequately indicated .

2
[ noun ] a disturbance that is extremely disruptive

Examples

"selling the company caused an earthquake among the employees"

Related terms

disturbance

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