Estimation of tsunami hazard from volcanic activity — Suggested methodology with Augustine volcano,Alaska as an example |
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| Authors: | Hemendra Acharya |
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| Institution: | (1) Geotechnical Division, Stone & Webster Engineering Corporation, P.O. Box 2325, 02107 Boston, MA, U.S.A. |
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| Abstract: | A general approach for the estimation of tsunami height and hazard in the vicinity of active volcanoes has been developed. An empirical relationship has been developed to estimate the height of the tsunami generated for an eruption of a given size. This relationship can be used to estimate the tsunami hazard based on the frequency of eruptive activity of a particular volcano. This technique is then applied to the estimation of tsunami hazard from the eruption of the Augustine volcano in Alaska. Modification of this approach to account for a less than satisfactory data base and differing volcanic characteristics is also discussed with the case of the Augustine volcano as an example. This approach can be used elsewhere with only slight modifications and, for the first time, provides a technique to estimate tsunami hazard from volcanic activity, similar to a well-established approach for the estimation of tsunami hazard from earthquake activity. |
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| Keywords: | Tsunami Augustine volcano empirical relationship |
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