[ Steve looks between Pikachu and Ash and seems to think they have some sort of friendly situation, so he squats down by the hole, close enough to look over it but on ground sturdy enough unless another quake comes, but that's why he turns to Pikachu and says: ]

Don't worry, I'll get him out of there. We wanna act quickly 'cause we don't want a cave-in. Can you stay here and flag someone down for help if they come by?

[ And with that said, he leaps right into the hole, careful to avoid landing on Ash or even near him in case he kicks up dust. ]

Okay, come on, let's get you out of here. Think you can hold onto me?