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| Titel |
Undersea landslides: extent and significance in the Pacific Ocean, an update |
| VerfasserIn |
H. J. Lee |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 5, no. 6 ; Nr. 5, no. 6 (2005-11-09), S.877-892 |
| Datensatznummer |
250002883
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| Publikation (Nr.) |
 copernicus.org/nhess-5-877-2005.pdf |
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| Zusammenfassung |
| Submarine landslides are known to occur disproportionately in a limited
number of environments including fjords, deltas, canyons, volcanic islands
and the open continental slope. An evaluation of the progress that has been
made in understanding Pacific Ocean submarine landslides over the last 15years
shows that mapping technologies have improved greatly, allowing a
better interpretation of landslide features. Some features previously
identified as landslides are being reinterpreted by some as sediment waves.
Previously underappreciated environments for landslides such as deep-sea
trenches are being recognized and lava deltas are being found to be
landslide prone. Landslides are also being recognized much more commonly as
a potential source of tsunamis. Landslides that have produced tsunamis in
the past are being mapped and in some cases modeled. The flow
characteristics of turbidity currents produced by landslides in canyon heads
have recently been monitored and the source of these failures has been
identified using repeated multibeam mapping. Finally, some landslide
deposits are being dated as part of assessing risk to coastal cities from
landslide-tsunamis. |
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