quivering vs shaking

quivering and shaking both are nouns.

Word	Noun	Adjective	Verb	Adverb
quivering	Yes	No	No	No
shaking	Yes	No	No	No

As nouns, quivering and shaking are synonyms defined as:

Other synonyms of quivering include palpitation, quiver, shakiness, trembling, vibration.

quivering (noun)	shaking (noun)
the act of vibrating	the act of causing something to move up and down (or back and forth) with quick movements
a shaky motion	a shaky motion