This map shows velocity vectors of specific sites monitored by GPS across the western United States. The emphasis of this map is to show the plate boundary between the North American and Pacific plates, commonly referred to as the San Andreas fault, which is shown at the dramatic increase in magnitude of vectors on the western edge of the continent. The velocity presented on this map is probably relative to North American plate, which means that any vector with a magnitude on the North American plate is due to elastic deformation. I specifically chose to post this because it is interesting to see proof that our world is a very dynamic one, and is moving under our feet.
Source: UNAVCO. http://www.unavco.org/research_science/workinggroups_projects/crustal_motion/dedt/sunysb/sunysb.html, (From B. Shentu, 2000)
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