Physics – Geophysics
Scientific paper
Oct 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.3009r&link_type=abstract
Geophysical Research Letters, Volume 26, Issue 19, p. 3009-3012
Physics
Geophysics
5
Oceanography: Physical: Tsunamis And Storm Surges, Marine Geology And Geophysics: Marine Sediments-Processes And Transport, Oceanography: General: Numerical Modeling, Oceanography: Physical: Surface Waves And Tides
Scientific paper
We examine the origin and behavior of the catastrophic tsunami that impacted Skagway Harbor at the head of Taiya Inlet, Alaska, on November 3, 1994. Geomorphologic and tide gauge data, combined with numerical simulation of the event, reveal that the tsunami was generated by an underwater land-slide formed during the collapse of a cruise-ship dock undergoing construction. Use of a fine-grid model for Skagway Harbor and a coarse-grid model for Taiya Inlet enables us to explain many of the eyewitness accounts and to reproduce the dominant oscillations in the tide gauge record, including the persistent (~1 h) 3-min oscillation in Skagway Harbor. The occurrence of the landslide is linked to critical overloading of the slope materials at a time of extreme low tide.
Bornhold Brian D.
Fine Isaac V.
Kulikov Evgueni A.
Rabinovich Alexander B.
Thomson Richard E.
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