Confirmation and calibration of computer modeling of tsunamis produced by Augustine volcano, Alaska
Science of Tsunami Hazards
By: James E. Beget and Zygmunt Kowalik
Links
- More information: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
Numerical modeling has been used to calculate the characteristics of a tsunami generated by a landslide into Cook Inlet from Augustine Volcano. The modeling predicts travel times of ca. 50-75 minutes to the nearest populated areas, and indicates that significant wave amplification occurs near Mt. Iliamna on the western side of Cook Inlet, and near the Nanwelak and the Homer-Anchor Point areas on the east side of Cook Inlet. Augustine volcano last produced a tsunami during an eruption in 1883, and field evidence of the extent and height of the 1883 tsunamis can be used to test and constrain the results of the computer modeling. Tsunami deposits on Augustine Island indicate waves near the landslide source were more than 19 m high, while 1883 tsunami deposits in distal sites record waves 6-8 m high. Paleotsunami deposits were found at sites along the coast near Mt. Iliamna, Nanwelak, and Homer, consistent with numerical modeling indicating significant tsunami wave amplification occurs in these areas.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Confirmation and calibration of computer modeling of tsunamis produced by Augustine volcano, Alaska |
| Series title | Science of Tsunami Hazards |
| Volume | 24 |
| Issue | 4 |
| Year Published | 2006 |
| Language | English |
| Publisher | Tsunami Society International |
| Contributing office(s) | Volcano Hazards Program |
| Description | 10 p. |
| First page | 257 |
| Last page | 266 |
| Country | United States |
| State | Alaska |
| Other Geospatial | Augustine volcano |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |