U.S. Geological Survey Photographic Library
ID. Alaska Earthquake no. 41ct
Alaska Earthquake March 27, 1964. The Turnagain Heights landslide in Anchorage occurred along a steep bluff fronting Knik Arm on Cook Inlet. Its length, which is parallel to the bluff, was about 1.5 miles; its width was about 1/4 to 1/2 mile. Many of the finer homes of the city were reduced to rubble by this landslide. Failure here and in the L Street, Fourth Avenue, and Government Hill landslides in Anchorage occurred on horizontal or near horizontal slip surfaces in the Bootlegger Cove Clay, a marine silt of Pleistocene age.
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