Season 1 (2009)
8.28 avg 13 episodes 7.8 → 8.6 48 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | San Andreas Fault | 7.8 | 47 |
| 2 | The Deepest Place on Earth | 7.8 | 47 |
| 3 | Krakatoa | 8.5 | 41 |
| 4 | Loch Ness | 7.9 | 37 |
| 5 | New York | 8.0 | 29 |
| 6 | Driest Place on Earth | 8.3 | 38 |
| 7 | Great Lakes | 8.6 | 39 |
| 8 | Yellowstone | 8.4 | 35 |
| 9 | Tsunami | 8.3 | 28 |
| 10 | Asteroids | 8.2 | 31 |
| 11 | Iceland | 8.7 | 29 |
| 12 | Hawaii | 8.6 | 33 |
| 13 | The Alps | 8.6 | 27 |
