Our sketch at above left offered thanks to Carson Dunlop Associates describes the difference in between bearing piles (above left), and friction piles (above right). If your house is supported by either stack type and the stacks were not correctly installed, you can expect differential settlement, ongoing movement, and the fracture pattern you explain.
The concrete pier revealed above is broken and damaged, maybe from frost. If the pier was made using steel re-bar reinforcement I do not think we face an imminent collapse of the structure above however if not, that's possible. Don't puzzle a cold put joint typically noticeable in concrete with actual splitting or frost heave damage.
Each adobe is 10 3/4" large and resting on a 24" broad X 24" deep foundation constructed on soil in New Mexico with some clay. Home dirt pad was developed on original earth and 13 cement pillars were put along the raised part of earth. Your house is 33' X 83'.
The most noticeable part of this 'shift' appears to be more toward completion of the house that rests on the pillared foundation. The restroom wall has to do with half method along this wall and the sewage system line sits under this portion of your home. There is Source but noticeable odor in this area and the tile has separated from the wall about 1".