Place it at the start of the collapse in your edit, not over dialogue, with a low rumble queued just before it and a single heavy thud placed right after it to close the sequence cleanly for viewers.
O tym dźwięku
This clip is a 4-second sound effect of stones and rocks tumbling, clattering and thudding as they fall and scatter. It feels chaotic and tense, like a small landslide or a pile giving way all at once, which makes the impact sound sudden, messy and a little alarming rather than clean or controlled.