Question:
Aguilas is not an Andalucian city, but rather a Murcian city?

Answer:
Yes, Aguilas is a Murcian city.  I was aware of this and considered moving the border westward, but finally decided not to since the overwhelming majority of the hex was Andalucian and it had no effect on the game (Aguilas is on the plain represented by the clear terrain, but on the extreme eastern edge.)

Source:
[AEG, Developer, 1998]