locate vs unearth

locate and unearth both are verbs.

Word	Noun	Adjective	Verb	Adverb
locate	No	No	Yes	No
unearth	No	No	Yes	No

As verbs, unearth is a hyponym of locate; that is, unearth is a word with a more specific, narrower meaning than locate:

locate: discover the location of; determine the place of; find by searching or examining
unearth: discover by investigation

Other hyponyms of locate include nail, pinpoint.

locate (verb)	unearth (verb)
take up residence and become established	recover through digging
discover the location of; determine the place of; find by searching or examining	discover by investigation
assign a location to
determine or indicate the place, site, or limits of, as if by an instrument or by a survey