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Figure 5: Interseismic motion along the San Andreas Fault System measured over decadal timescales using the Global Positioning System. The red arrows show the annual velocity of benchmarks relative to stable North America (maximum arrow length is about 50 mm/yr). Focusing on the swath spanning the San Andreas Fault at Wallace Creek (transparent rectangle, one can see that about 35 mm/yr of motion is accumulating across the San Andreas Fault and will be released in a future earthquake. GPS velocities from EarthScope (www.earthscope.org). Orange and yellow lines are active faults from the US Geological Survey Quaternary Active Faults database.

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Uploaded: Aug5 10


Last Modified: 2014-11-13 10:49:54
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Sarah Robinson, Arizona State University at the Tempe Campus
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