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Ground Failure

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

Figure 11.

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Conceptual diagram of the pattern of intersection of earthquake load and soil liquefaction resistance. On the south side of the fault, rising ground motion intensity intersects falling soil liquefaction resistance: the transition zone into liquefaction is abrupt. On the north side of the fault, ground motion intensity and liquefaction resistance both fall in tandem. Here, liquefaction is observed along the Nabesna River on and off all the way to Northway. Areas where load exceeds capacity result in liquefaction ground failures.

Conceptual diagram.
maintained by Diane Minasian
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last modified 20 January 2005