earthquake vs hoo-hah

earthquake and hoo-hah both are nouns.

Word	Noun	Adjective	Verb	Adverb
earthquake	Yes	No	No	No
hoo-hah	Yes	No	No	No

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

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

earthquake (noun)	hoo-hah (noun)
shaking and vibration at the surface of the earth resulting from underground movement along a fault plane or from volcanic activity	a disorderly outburst or tumult
a disturbance that is extremely disruptive