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Ground Failure

Geotechnical Observations of the November 3, 2002 M7.9 Denali Fault Earthquake
 

Figure 3.

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High precision (decimeter-scale) surveys were made using a portable differential GPS mapping unit. On the right is a detail map of lateral spreads on the Tanana River at Tetlin Junction (near SASW Site 588TET).

Photo of GPS mapping unit and map of lateral spreads.

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last modified 20 January 2005