 |
| Titel |
Numerical modeling of the 1964 Alaska tsunami in western Passage Canal and Whittier, Alaska |
| VerfasserIn |
D. J. Nicolsky, E. N. Suleimani, R. A. Hansen |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 12 ; Nr. 10, no. 12 (2010-12-03), S.2489-2505 |
| Datensatznummer |
250008529
|
| Publikation (Nr.) |
 copernicus.org/nhess-10-2489-2010.pdf |
|
|
|
|
|
| Zusammenfassung |
| A numerical model of the wave dynamics in Passage Canal, Alaska during the
Mw 9.2 megathrust earthquake is presented. During the earthquake,
several types of waves were identified at the city of Whittier, located at
the head of Passage Canal. The first wave is thought to have been a seiche,
while the other two waves were probably triggered by submarine landslides. We
model the seiche wave, landslide-generated tsunami, and tectonic tsunami in
Passage Canal and compute inundation by each type of wave during the 1964
event. Modeled results are compared with eyewitness reports and an observed
inundation line. Results of the numerical experiments let us identify where
the submarine landslides might have occurred during the 1964 event. We
identify regions at the head and along the northern shore of Passage Canal,
where landslides triggered a wave that caused most of the damage in Whittier.
An explanation of the fact that the 1964 tectonic tsunami in Whittier was
unnoticed is presented as well. The simulated inundation by the seiche,
landslide-generated tsunami, and tectonic tsunami can help to mitigate
tsunami hazards and prepare Whittier for a potential tsunami. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|