Every astronomer in the northern hemisphere plainly saw what they thought was a natural cataclysm.

With the suddenness of a natural cataclysm we were at the counter.

No, he didn't know what caused the disaster, probably some natural cataclysm.

He waited for thunder, earthquakes, natural cataclysms; but nothing happened.

Such natural cataclysms, however, were completely beyond my power to ordain or even predict.

Along the way it appears that Conrad's beloved wife is killed in a natural cataclysm.

Yes, fossil evidence suggested a natural cataclysm.

The game assumes that no cataclysm - natural or human-induced - swept Earth in the 21st century.

The normal course was for a trading species to develop after several billion years of life on a planet, if some natural cataclysm didn't wipe it out.

There are strong pictorial elements: choral crowd scenes, orchestral representations of natural cataclysm.