disruption vs upheaval

disruption and upheaval both are nouns.

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

As nouns, upheaval is a hyponym of disruption; that is, upheaval is a word with a more specific, narrower meaning than disruption:

disruption (noun)	upheaval (noun)
the act of causing disorder	disturbance usually in protest
an act of delaying or interrupting the continuity	(geology) a rise of land to a higher elevation (as in the process of mountain building)
an event that results in a displacement or discontinuity	a state of violent disturbance and disorder (as in politics or social conditions generally)
a disorderly outburst or tumult	a violent disturbance