ichidan verb, intransitive verb
crumble down; tumble down; fall in
Describes something collapsing or crumbling downward, often with a sense of gradual or dramatic structural failure. Used for buildings, cliffs, piles, and similar physical structures.
地震で古い家が崩れ落ちた。
The old house crumbled down in the earthquake.
崖の一部が崩れ
Part of the cliff tumbled down and blocked the road.