Well, I want to know who covered it up in the first place.
Father time.
Just wind and time, probably.
Anything left alone gets about 1/4 cm dust a year on it in the Negev, sometimes more, sometimes less. Voids (e.g., a hole) get filled faster.
Doesn’t take long.
My old house in Gush Katif is literally invisible from the air. It was burned in 2005.
[[Well, I want to know who covered it up in the first place.]]
Termites- I blame everything on termites