Quake fires on combo finish. On a piece that carries it it reads: Combo finishers send a shockwave through enemies within 2 u for {value}% of your Power.

Word for word it is Combo finishers send a shockwave through enemies within 2 u for {value}% of your Power, and the number in it grows with the gear: 90 to start, 5 more for every item level.

0 bases carry it.

Awakening can reach it too — 2 spirit paths pick it up at Spirit Level 3: Icetyrant and Festertyrant.