debris surge vs upsurge

debris surge and upsurge both are nouns.

Word	Noun	Adjective	Verb	Adverb
debris surge	Yes	No	No	No
upsurge	Yes	No	No	No

As nouns, upsurge is a hypernym of debris surge; that is, upsurge is a word with a broader meaning than debris surge:

debris surge: the sudden spread of dust and debris from a collapsing building
upsurge: a sudden forceful flow

Other hypernyms of debris surge include rush, spate, surge.

debris surge (noun)	upsurge (noun)
the sudden spread of dust and debris from a collapsing building	a sudden or abrupt strong increase
	a sudden forceful flow