break open vs erupt

break open and erupt both are verbs.

Word	Noun	Adjective	Verb	Adverb
break open	No	No	Yes	No
erupt	No	No	Yes	No

As verbs, break open and erupt are synonyms defined as:

Other synonyms of break open include burst out, flare, flare up, irrupt.

break open (verb)	erupt (verb)
erupt or intensify suddenly	become active and spew forth lava and rocks
come open suddenly and violently, as if from internal pressure	start abruptly
open with force	erupt or intensify suddenly
	become raw or open
	break out
	appear on the skin
	force out or release suddenly and often violently something pent up
	start to burn or burst into flames