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22 Νοε 2020 · Some 2 square miles (4 square kilometers) of forest were sheared and swept away by the tsunami waves. One of the causes of the enormous waves in Lituya Bay was that an entire chunk of a mountain peak—estimated to be 2,400 feet by 3,000 feet by 300 feet—broke free from a cliff and dropped 2,000 feet.
A tsunami with a record run-up height of 1720 feet occurred in Lituya Bay, Alaska. Lituya Bay: The photo above shows Lituya Bay, from an aircraft over the Gulf of Alaska. The landslide that triggered the tsunami originated from the top of the steep cliffs along the far left side of the bay.
16 Αυγ 2023 · The new inundation maps show the most acute impacts would be flooding in the Turnagain Arm communities of Girdwood and Hope and across the Knik Arm from Anchorage in the Point MacKenzie area.
2 Απρ 2023 · The resultant wave was not just a tsunami but the largest tsunami ever recorded, a megatsunami. At an estimated 1,720 feet high at its highest, it would have dwarfed every building in...
Damage from the 1958 Lituya Bay megatsunami can be seen in this oblique aerial photograph of Lituya Bay, Alaska as the lighter areas at the shore where trees have been stripped away. The red arrow shows the location of the landslide, and the yellow arrow shows the location of the high point of the wave sweeping over the headland.
If the giant, slow-moving landslide were to suddenly collapse into the narrow fjord below, it would generate an extremely large tsunami because of the way the fjord's shape would amplify the wave. June 2019 JPEG
16 Αυγ 2023 · A new report by the University of Alaska Fairbanks and Alaska Division of Geological & Geophysical Surveys reveals an updated understanding of how tsunamis interact with tides and of the region’s potential tsunami hazard.
