| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| biggest military disasters in history | 1.61 | 0.7 | 4562 | 69 |
| worst us military disasters | 0.85 | 0.2 | 4185 | 54 |
| biggest disasters in history | 0.74 | 0.5 | 1713 | 95 |
| biggest disasters in american history | 0.93 | 0.8 | 642 | 7 |
| largest disasters in us history | 1.61 | 0.8 | 3283 | 79 |
| major disasters in american history | 0.69 | 1 | 4804 | 21 |
| worst us disasters in history | 0.19 | 0.5 | 7028 | 38 |
| major disasters in history | 1.14 | 0.2 | 5794 | 99 |
| largest disasters in human history | 1.14 | 0.9 | 77 | 48 |
| greatest disasters in history | 1.42 | 0.5 | 5077 | 49 |
| most historians agree that military disasters | 1.21 | 0.1 | 4222 | 96 |
| worst disasters in american history | 0.38 | 1 | 7510 | 80 |
| most devastating disasters in history | 1.98 | 0.6 | 323 | 16 |
| most deadly disasters in history | 0.21 | 0.5 | 1251 | 75 |
| worst disasters in history list | 0.86 | 0.3 | 5010 | 18 |
| deadliest disasters in us history | 0.91 | 0.8 | 6674 | 87 |
| largest maritime disaster in us history | 0.77 | 0.2 | 4942 | 6 |
