The estimated 300-foot dump collapsed after flames engulfed it late on Friday.
Witnesses said they heard a large sound and people shouting as their houses started to move and windows break.
Police say about 145 houses had been damaged, but they did not give any information on how many had been buried.
Rescue staff continue to use heavy machinery to move the garbage and wrecked houses looking for survivors.
Residents of the area, mostly living in shanties, have been demanding the removal of the dump saying it was causing health issues.