This might be caused by an earthquake or it might happen after a heavy rain or when soil becomes waterlogged after a fall of snow.

山崩可能地震引起，也可能发生在大雨后或雪后因泥土浸满了水而引起。

youdao

One night there was a heavy fall of snow.

一天晚上天降大雪。

《柯林斯英汉双解大词典》

There was a welcome fall of seasonable snow in north China.

华北地区喜降瑞雪。

《新英汉大辞典》

His was the eighth administration to go in ten years of Nepali democracy, and showed once again that the fall of governments is as wearily predictable, and nearly as frequent, as a fall of snow in this mountain country.

ECONOMIST: Nepal

As a result, there is a potential for a large fall of snow.

BBC: Snow and sleet forecast for Northern Ireland

There had been a fresh fall of snow the night before, and the fences and trees stood out black against it.

NEWYORKER: She��s the One