Opponents say the government's policy is 'a disaster waiting to happen'. [=something that will probably have a very bad or tragic result]
The government's policy is 'a recipe for disaster'. = The government is 'flirting with disaster' by pursuing this policy.
The earthquake was one of the worst 'natural disasters' [=a disaster caused by natural forces] of this century.
(..) Harold, we have to be... Quick! While they're not looking we can make a run for it. Shrek, stop it! Everything's gonna be... A disaster! There is no way... - You can do this. - I really... - Really... - don't... want... to... be... Here! (..)2004 Shrek 2