earthquake vs disruption

earthquake and disruption both are nouns.

Word	Noun	Adjective	Verb	Adverb
earthquake	Yes	No	No	No
disruption	Yes	No	No	No

As nouns, disruption is a hypernym of earthquake; that is, disruption is a word with a broader meaning than earthquake:

Other hypernyms of earthquake include commotion, disturbance, flutter, hoo-ha, hoo-hah, hurly burly, kerfuffle, to-do.

earthquake (noun)	disruption (noun)
shaking and vibration at the surface of the earth resulting from underground movement along a fault plane or from volcanic activity	the act of causing disorder
a disturbance that is extremely disruptive	an act of delaying or interrupting the continuity
	an event that results in a displacement or discontinuity
	a disorderly outburst or tumult