i think the only way is to evolve a gible that you can get at wayward cave secret passage or you could use action replay and steal cynthias but i don't us Action replay cheats so i don't no how though.
earthquake
gabite evolves at level 50Gabite evolve to Garchomp at level 48 on Pokemon Diamond.
garchomp, dragonite, milotic, dialga, giratina garchomp, dragonite, milotic, dialga, giratina
Garchomp ANSWER: itz gible, then gabite, then garchomp
Send it over from diamond obviously
Garchomp actually doesn't learn earthquake by increasing lvl....but it learns through tm26(which is earthquake).
it evolves into gabite at 24 and garchomp at 48
I dont think it can learn it.
Ice type pokemon.
diamond and pearl spirttomb garchomp roserade gastrodon milotic and lucario platinum spirttomb garchomp roserade lucario milotic and togekiss
You see it in the Pokemon league The champion has it
Depends on the moves you teach them