| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what caused the 1977 johnstown flood | 1.89 | 0.8 | 5642 | 69 |
| when was the 1977 johnstown flood | 1.94 | 0.2 | 2037 | 77 |
| what caused the johnstown flood | 1.91 | 0.9 | 7682 | 79 |
| johnstown flood of 1977 | 0.25 | 0.8 | 2002 | 81 |
| johnstown flood 1977 facts | 0.37 | 0.2 | 4889 | 27 |
| johnstown flood 1977 pictures | 1.88 | 0.1 | 8506 | 66 |
| johnstown flood 1977 deaths | 1.63 | 0.5 | 8434 | 82 |
| cause of the johnstown flood | 1.25 | 1 | 6213 | 50 |
| what caused the johnstown flood of 1936 | 0.84 | 0.5 | 461 | 33 |
| what caused the johnstown flood of 1889 | 0.14 | 0.3 | 3923 | 86 |
| johnstown pa flood 1977 | 0.27 | 0.5 | 8420 | 52 |
| why did the johnstown flood happen | 1.67 | 0.8 | 8704 | 36 |
| what year did the johnstown flood happen | 0.07 | 0.7 | 6146 | 96 |
| johnstown pa 1977 flood pictures | 1.16 | 1 | 1569 | 30 |
| what year was the johnstown flood | 0.47 | 0.5 | 1046 | 64 |
| history of the johnstown flood | 0.99 | 1 | 894 | 45 |
| johnstown flood 1977 death toll | 0.86 | 0.7 | 7240 | 93 |
