What we’ve learned about earthquakes
Video: What we’ve learned about earthquakes
Video: What we’ve learned about earthquakes. NASA works with the U.S. Geological Survey to track and understand the Earth’s restless crust. This video from NASA and the Jet Propulsion Laboratory traces the progress of seismology since the 1906 quake. 
(Via CNET News.com - Newsmakers.)
[tags]gps, earth, data, nature, nasa, geography[/tags]
