I'm not sure but I think Tyranitar learns Earthquake after evolution.
Yes Pupitar learn its.
It learns Hyper beam on lv. 57.
yes
Tyranitar learns Hyper Beam at level 73.
Don't think there is one, but, larvatar --> Pupitar --> Tyranitar
Tyranitar cannot naturally learn Dig, but it can be taught Dig through a TM.
you have to give typhlosion a TM Earthquake Hopes this helped :-D
Evolve it from larvitar at level 30 to evolve it into pupitar then evolve it into tyranitar at level 55
71
Earthquake, Crunch, Rock Slide, Aerial Ace.
Arieal ace, Thunderbolt, Earthquake, and Crunch.