We just try not to let the same disaster happen more than once.

They don't want people to end up in a state of poverty because this disaster happened.

The training means they can better know an area if a disaster happens.

After that, he realized disaster really could happen to him.

Many disasters happened in the city during the 19th century.

This is especially needed when a disaster happens in a poor country.

Yet still he found himself struggling to believe that the disaster had really happened.

If a disaster of such proportions had happened to her, she probably wouldn't have been as nice about it.

I think it would be appropriate to begin thinking about these things before disasters happen.

Of course, it is terrible that the disaster happened in 2010.