-'Air-quake': Whitebeard swings his arm (or arms) and literally cracks the air itself, sending devastating shock waves through the air in the direction it is facing. These shock waves are able to pass through and damage almost any substance, literally tearing it apart. The shock waves can also be sent into the sea, generating huge tsunamis, and can be used in conjunction with physical attacks in close-quarter-combat - as Akainu can bear witness to.
-'Quake-bubble': Whitebeard converges quakes into a sphere of focused power around his fist, effectively harnessing his terrible destructive power into a pin-point attack he can use in close-quarter-combat and completely avoid collateral damage (evident when Moby Dick's deck didn't suffer a single dent when he crushes Ronse's head with a quake bubble against it).
-'Quake-tilt': Whitebeard grabs the air around him as if it were tangible and pulls it, causing the area around him to shift. Using this, he was capable of tilting the entire island of Marineford and the sea around it.
-'Quake-explosion': Similar to his quake bubble, Whitebeard focuses his quake power around in a sphere of focused power, with the difference that he then sends it forward and releases it in an explosion-like quake.