Yes, and you do it yourself. Open My reviews from your account menu, choose Change your area, then pick your state, your LGA and type where you live now. If nobody has written about that area yet, typing it puts it on Arandmi.
You can do this twice in a year. Moving twice is normal; working through the map rating places you have never lived is not, so the door closes after the second change until the year is up.
What you already wrote stays published and keeps counting towards that area’s average, because someone reading about it still needs your account of it. It picks up a Former resident note so readers know you have since left, and it can no longer be edited.