upthrow vs upheaval

upthrow and upheaval both are nouns.

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

As nouns, upthrow and upheaval are synonyms defined as:

upthrow and upheaval: (geology) a rise of land to a higher elevation (as in the process of mountain building)

Other synonyms of upthrow include uplift, upthrust.

upthrow (noun)	upheaval (noun)
(geology) a rise of land to a higher elevation (as in the process of mountain building)	disturbance usually in protest
	(geology) a rise of land to a higher elevation (as in the process of mountain building)
	a state of violent disturbance and disorder (as in politics or social conditions generally)
	a violent disturbance