Every one feels that a disaster is imminent, as if a catastrophe is about to come.

谁都感到大事不好，似乎有什么极大的灾难即将来临。

《新英汉大辞典》

Then again, a sense of imminent disaster is integral to the piece.

NEWYORKER: The Monster Concerto

If global warming is real, but disaster is not imminent, there is much to commend a gradual approach to tackling it.

ECONOMIST: If you want a cool planet, keep a cool head