GPS positioning data is showing that the island of Japan has moved an incredible 13 feet closer to North America due to Friday's 8.9 earthquake (some are now upgrading it to a magnitude 9.0). It also shows some 250 miles of Japan's coastline dropped 2 feet. This New York Times page has some great multimedia graphics about the geology involved with the quake. The first is a series of seven graphics that clearly illustrate the plate tectonics involved in the devastating earthquake and subsequent tsunami.

NYT article

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