It is in the cave where Archie of Team Aqua tries to capture Kyogre. Alas you need HM Dive to get there.
The Seafloor Cavern is in route 128, south of Mossdeep City. You need to use dive to access it.
bring it to the top of mt.pier and you will see archie. he is retrning the red orb. go up to the lady and retrn the blue orb now. and......thats it.
Archie will return the Red orb himself. As you are on the top of mt. Pyre, you should return the blue orb too.
You find a Vulpix on the big tower west of Lilycove… You know, where Archie and T/A are.You can also catch Duskull, another good Pokemon. They are at about Level29-33.
Archie is ez if you have grass types or electric types.
He is at Mount Pyre
Underwater cavern.
He is in the seafloor cavern.
earthquake in Sapphire will be found in seafloor cavern in the room that you battle Archie of team aqua
you will find him underwater in a cave
You can get in after you beat Archie at the route 128 cavern.
he goes to his underwater hideout cave.
Seafloor Cavern, just before you hit Route 129.
Through the magic of the final axe of the Egyptian Pokemon
After beating the game go to mt pyre and find the part where you got your orb Archie will be there and give you the orb now talk to the lady she will take them both from you.
It is in the cave where Archie of Team Aqua tries to capture Kyogre. Alas you need HM Dive to get there.