By that logic any bad thing could happen anywhere at anytime. Which is technically possible, but not plausible.
Except the current ones.
Given enough time you’d expect it to happen, but the chances of it happening now are very slim.
Let’s say the Roman Empire lasted ~1,000 years.
If there’s a once in a ~1,000 year event and you warned every day of it, you’d be wrong 99.9998% of the time and right 0.0002% of the time. I’m not sure how useful a warning like that is.