| 100% | FAULTLINE | 9 | Sign of a fracture in the Earth’s crust |
| 52% | SILICON | 7 | More than a quarter of the earth's crust |
| 51% | HORST | 5 | Raised block of the earth's crust, to a geologist |
| 50% | MAINST | 6 | Sign in the heart of many a small town's downtown (2 wds.) |
| 50% | FAULT | 5 | Crack in the earth's crust |
| 49% | ASTATINE | 8 | Rarest naturally occurring element in the earth's crust |
| 48% | SILICON | 7 | More than a quarter of the earth's crust, by mass |
| 45% | PLATE | 5 | Part of the earth's crust |
| 45% | HORST | 5 | Ridge of the earth's crust |
| 45% | SIMA | 4 | Part of the earth's crust |
| 45% | PLATE | 5 | Division of the earth's crust |
| 45% | VOLCANO | 7 | A vent in the Earth |
| 44% | MINUET | 6 | It's done in the form of an S or a Z |
| 44% | TECTONICS | 9 | Science of the Earth’s crust |
| 44% | MOTHRA | 6 | Giant moth-like creature featured in the "Godzilla" films as a good monster and protector of the Earth |
| 44% | HAND | 4 | Unit in the measure of a horse's height |
| 44% | EYE | 3 | Organ in the middle of a Cyclops's forehead |
| 44% | ONATHEME | 8 | Words in the title of a composer's homage |
| 43% | REDDEER | 7 | City in S Alberta, Canada, on a major tributary of the South Saskatchewan River |
| 43% | PAW | 3 | Part of a dog that's in the Iams logo |
| 43% | STAPLE | 6 | Dominant crop in the diet of a region's people |
| 43% | SIMA | 4 | Lower layer of the earth's crust |
| 43% | TECTONICPLATE | 13 | Shifting piece of the earth's crust |
| 43% | INTER | 5 | Place in the earth of hinterlands |
| 43% | GNOME | 5 | One of a species of legendary creatures said to live in the depths of the earth and guard buried treasure |
| 43% | CHASM | 5 | A deep hole usually in the earth's surface |
| 42% | TUG | 3 | Sign of a fish on the line |
| 42% | TECTONIC | 8 | Relating to the structure of the earth's crust |
| 42% | TARTS | 5 | The Queen of Hearts's output, in a nursery rhyme |
| 42% | TUE | 3 | The first of two T's, in a familiar sequence |