| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| visible impact craters on earth | 1.17 | 0.9 | 6884 | 86 |
| largest visible impact crater on earth | 0.36 | 0.5 | 8676 | 91 |
| impact craters on earth | 0.89 | 1 | 4297 | 9 |
| impact craters on earth map | 1.1 | 0.6 | 2003 | 92 |
| large impact craters on earth | 1.99 | 0.6 | 3698 | 28 |
| list of impact craters on earth | 0.1 | 0.8 | 438 | 13 |
| most recent impact crater on earth | 1.02 | 0.3 | 6949 | 75 |
| crater impact sites on earth | 1.61 | 0.1 | 4426 | 4 |
| visible craters on earth | 1.78 | 0.1 | 7100 | 98 |
| biggest impact craters on earth | 1.86 | 0.3 | 7242 | 82 |
| the nature of impact craters | 1.01 | 0.4 | 975 | 11 |
| crater impacts on earth | 0.18 | 0.5 | 6977 | 2 |
| the largest impact crater on earth | 0.66 | 0.8 | 5384 | 89 |
| impact craters in usa | 0.01 | 1 | 7739 | 21 |
| what are impact craters | 1.99 | 0.4 | 258 | 30 |
| impact craters in the united states | 1.87 | 0.1 | 9881 | 85 |
| earth's largest impact craters | 1.39 | 0.5 | 6118 | 13 |
| impact craters in north america | 1.27 | 0.5 | 4512 | 19 |
| impact crater map of the world | 0.34 | 0.4 | 5489 | 69 |
