24 Aug '11, 3pm

Watch how yesterday's #Earthquake waves ripple across the US (Video)

Watch how yesterday's #Earthquake waves ripple across the US (Video)

If there's one important point to take away from yesterday's east coast earthquake, it's a reminder that what happens in one part of the planet affects other parts of the planet hundreds, even thousands of miles away. This video uses data points in an animation that lets you see just how far, and fast, the waves from the quake rippled across the country. Read on to watch. Discover Magazine writes, "What you're seeing here are vertical displacement measurements from an array of detectors that are part of the USArray/EarthScope facility . These are very sensitive instruments; note the scale on the lower graph showing the motion is only about 40 microns top-to-bottom! That's less than the thickness of a human hair." The red dots are the upward motion, the blue dots are the downward motion, and the saturation of the color represents the amplitude of the wave -- so you'll see t...

Full article: http://www.treehugger.com/files/2011/08/watch-how-the-vir...

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