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ALASKA CASE STUDY

Table 1 - Some selected tsunamis of Alaska

DateCauseRun-up(m)Comments
16/10/1737Earthquake12-15Driftwood deposited by the tsunami
06/08/1788Earthquakeup to 88Many drowned
1853/1854Landslide120Many drowned
06/10/1883Volcano9.1Houses flooded and ships grounded
04/07/1905Landslide35Erosion of land surface
27/10/1936Landslide15050 barrels of salmon destroyed
10/07/1958Earthquake/Landslide52510 sq.km of forest washed away
28/03/1964Earthquake/Landslides67.1US$311 million damage

From the information contained within Table 1 it can be seen that very significant tsunamis are known to have impacted the coastline of Alaska during the last 250 years of history. For example the tsunami that occurred within Lituya Bay in 1958 had a run-up recorded at 525 m above sea level. Since the tsunami history for the region is likely to be incomplete, it is possible that larger, more destructive events have gone unrecorded during this period or in the period prior to European occupation.
 

© 2000 Natural Environment Research Council, Coventry University and University College London