I managed to reorganize the cabinets in my new room and cleared up the previous room. Found a big crack on the wall while clearing up the old room. It was hiding behind the tall rack all along, developed over time (since I don’t remember the crack was there when I moved in a year plus ago). It was either poor workmanship or soil settlement down below.
Could the loudspeaker induce this force?
The supplier folks delivered the refrigerator.