How likely is a Disaster
Likelihood in plain English
We talk about the likelihood of events all time, so it helps
| Event is... | Phrase | % | Odds |
| Very Rare | Once in a million years | 0.0001% | 1,000,000:1 |
| Once in a thousand years | 0.1% | 1,000:1 | |
| Rare | Once in a hundred years | 1% | 100:1 |
| Once in a lifetime | 5% | 50:1 | |
| Infrequent | Once in a decade | 10% | 10:1 |
| Annual | 100% | evens | |
| Common | Monthly | 1,200% | 1:12 |
| Weekly | 5,200% | 1:50 | |
| Constant | Daily | 36,500% | 11:4,000 |
| Hourly | 876,000% | 4:35,000 |