Lituya Bay: The 1,720-Foot Wave That Stripped a Mountain
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Lituya Bay: The 1,720-Foot Wave That Stripped a Mountain
231 просмотр · 8 дней назад
Watch Beneath the Surface
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231 просмотр · 8 дней назад
On 9 July 1958, a magnitude 7.8 earthquake on the Fairweather Fault dropped about 30 million cubic metres of rock into Gilbert Inlet at the head of Lituya Bay, Alaska. The water climbed the opposite slope to 524 metres, 1,720 feet, the highest wave run-up ever recorded. Three fishing boats were anchored in the bay that night; two of them rode over the wave and survived. This video explains how a landslide makes a wave that a normal tsunami never could, why this particular bay has done it at least four times in a century, and what the trimline in the forest still shows today.
Chapters:
0:00 A Wave Over a Skyscraper
1:17 Three Boats at Anchor
2:32 The Mountain Falls
3:50 Taller Than the Eiffel Tower
5:06 What a Megatsunami Is
6:24 The Wave Reaches the Boats
7:35 Carried Over the Spit
8:38 The Trimline From the Air
9:55 Why Lituya Bay Does This
11:14 The Bay Today
12:24 Ride It or Run
Sources:
https://en.wikipedia.org/wiki/1958_Li...
https://earthquake.alaska.edu/60-year...
https://www.usgs.gov/media/images/lit...
https://geology.com/records/biggest-t...
https://www.earthmagazine.org/article...
Howard Ulrich turned his boat into the wave and rode over it. Would you have done the same, or run for the open sea? Tell me in the comments.