Link to USGS home page Link to USGS home pageWestern Region Coastal and Marine Geology
Ground Failure

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

Figure 7.

back Back to Report

Where surface crust (~0.3m) was rafted on a liquefied layer, lateral movement drove the crust down-slope. In low-areas (here, a return channel) collision of two crusts resulted in between 3.8m and 4.3m of shortening (near SASW Site 588TET).

Photo of ruptured crust.

http://walrus.wr.usgs.gov/geotech/denaliobs/fig7.html
maintained by Diane Minasian
For further information PLEASE CONTACT: Robert Kayen
last modified 20 January 2005