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Modeling and analysis of the 1949 Narrows landslide, Tacoma, Washington

Bulletin of the Association of Engineering Geologists

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Abstract

A large landslide failed catastrophically along steep, 90-m (300-ft) high bluffs overlooking the waters of Puget Sound at Tacoma, Washington, in April of 1949, three days after the region was struck by a magnitude 7.1 earthquake. The area of failure was investigated to estimate the static and seismic stability of the pre-earthquake slope and to identify factors that contributed to the failure. Comparison of predicted displacements with a reported displacement suggests that the ground motion could have initiated the large-scale failure. Results of the study provide a basis for discussion and comparison of similar bluffs in the Pugent Sound region that may be susceptible to catastrophic, earthquake-induced slope failure. -Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Modeling and analysis of the 1949 Narrows landslide, Tacoma, Washington
Series title:
Bulletin of the Association of Engineering Geologists
Volume
31
Issue:
3
Year Published:
1994
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
305
Last page:
327
Number of Pages:
23