[talk-ph] Scientific American - What Happens to Google Maps When Tectonic Plates Move?

[Eugene Alvin Villar]

Link:
http://blogs.scientificamerican.com/critical-opalescence/2013/11/11/what-happens-to-google-maps-when-tectonic-plates-move/

This is a nice readable article on the accuracy of GPS coordinates and
georeference satellite imagery, geodetic datums, and how geographers try to
keep up with Earth's dynamic crust.

An interesting link in the article is this animation of a GPS network in
Japan that shows the propagation of ground waves in the minutes after the
2011 Japan earthquake: http://www.youtube.com/watch?v=rMhhyb6Yy94
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