The Hitchhiker's Guide to Planet Earth
Geology and Geography
- Portland, Oregon used to be under over 600 feet of water.
- Fossils have been found to indiate that Elephants used to live along the Columbia River Gorge in Oregon.
- There is a 70% chance that one or more earthquakes of a magitude of 6.7 or higher will hit the San francisco Bay area within the next 20 years. A quake of that magnitute would cause hundreds of deaths and hundreds of billions of dollars of damages.