catch fire vs erupt

catch fire and erupt both are verbs.

Word	Noun	Adjective	Verb	Adverb
catch fire	No	No	Yes	No
erupt	No	No	Yes	No

As verbs, catch fire and erupt are synonyms defined as:

Other synonyms of catch fire include combust, conflagrate, ignite, take fire.

catch fire (verb)	erupt (verb)
start to burn or burst into flames	become active and spew forth lava and rocks
	start abruptly
	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