The provided source material does not contain information regarding a city named Acala in Mexico. Instead, it identifies Acala (also known as Achala, Acalanātha, or Āryācalanātha) as a wrathful deity and dharmapala.
In the context of religious traditions, Acala is a prominent figure in Vajrayana Buddhism and East Asian Buddhism. The entity is characterized by its role as a protective deity within these spiritual frameworks.