temblor vs seaquake

temblor and seaquake both are nouns.

Word	Noun	Adjective	Verb	Adverb
temblor	Yes	No	No	No
seaquake	Yes	No	No	No

As nouns, seaquake is a hyponym of temblor; that is, seaquake is a word with a more specific, narrower meaning than temblor:

temblor: shaking and vibration at the surface of the earth resulting from underground movement along a fault plane or from volcanic activity
seaquake: an earthquake at the sea bed

Other hyponyms of temblor include seismic disturbance, shock, earth tremor, microseism, tremor, submarine earthquake.

temblor (noun)	seaquake (noun)
shaking and vibration at the surface of the earth resulting from underground movement along a fault plane or from volcanic activity	an earthquake at the sea bed