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(YouTube link) Seismic measurements recorded on August 23rd during the earthquake centered in Virginia show how the shock wave traveled across the USA. If you didn’t feel it, it was because the movements measured are very small. What you’re seeing here are vertical displacement measurements from an array of detectors that are part of the USArray/EarthScope facility Broadcasting platform : YouTube Source : Neatorama Discovery Date : 31/08/2011 16:16 Number of articles : 2
