Causing or resembling an earthquake in intensity or effect; extremely powerful or shocking.
Present participle of 'earthquake' used as an adjective, with the '-ing' suffix (Old English -ing). Often used metaphorically to describe events with earthquake-like impact.
When people call something 'earthquaking,' they're borrowing the physical power of geology for language—it's why we say 'earth-shattering news,' using natural disasters as the ultimate metaphor for big changes.
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