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Ground Failure

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

Figure 9.

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Sand boils west of Northway Airport were almost perfectly preserved nine months after the earthquake when we returned to conduct SASW testing. During most of the intervening period the grounds, and all the damage features, were frozen (SASW Site 587NOR, Northway Weather Station).

Photo of large sand boil.
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last modified 20 January 2005