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World's Tallest Tsunami – Lituya Bay, Alaska, 1958

92 points by vinnyglennon 12y ago

infinotize 12y ago
There are a few hypothetical landslide/displacement-driven tsunami events that are interesting to read about: http://en.wikipedia.org/wiki/Megatsunami#Potential_future_megatsunamis http://en.wikipedia.org/wiki/Megatsunami#Potential_future_me...
themodelplumber 12y ago
From the BBC video: "They rode the wave as it swept them above the trees and washed them back into the bay." Wow! I think I would be ready to move to the desert after experiencing something like that.
sandworm 12y ago
This was discussed in my geology course at UBC. The prof was adamant that this was not a "true" tsunami, that it was a product of specific geology/geometry rather than a true sea-born wave triggered by geological-scale events. I guess he was correct in that this thing didn't have the total energy of a typical tsunami, but it was certainly enormous for those in the local area.
- davidw 12y ago
  This is a similar event in terms of a landslide sloshing into a body of water. Smaller in scale, but far more lives were lost. http://en.wikipedia.org/wiki/Vajont_Dam http://en.wikipedia.org/wiki/Vajont_Dam
cshimmin 12y ago
I was fascinated by this article, so I was trying to explain it to my colleagues. I was enthusiastically sketching the bay and glaciers on the chalkboard when I suddenly became very embarrassed, as I realized I was basically drawing a big uterus on the board :S
jkot 12y ago
Thera eruption was probably taller when it hit Crete.
sandworm 12y ago
Is it safe to assume that some meteor impact in the distant past must have had a taller wave, something measured in kilometres?
- NamTaf 12y ago
  Not sure. Part of what makes this one so high is that the displaced water can only go in one direction. It'd be a pretty coincedental impact for a meteor to hit somewhere where that can happen.
dmd 12y ago
So if this sort of thing has happened within living memory, it's probably fairly common.
junto 12y ago
There are a fair few potential 'megatsunamis' waiting out there. The Canary Islands one could be particularly devastating since theoretically half the island on La Palma could slide into the sea. http://en.m.wikipedia.org/wiki/Megatsunami http://en.m.wikipedia.org/wiki/Megatsunami

92 points by vinnyglennon 12y ago

There are a few hypothetical landslide/displacement-driven tsunami events that are interesting to read about: http://en.wikipedia.org/wiki/Megatsunami#Potential_future_megatsunamis http://en.wikipedia.org/wiki/Megatsunami#Potential_future_me...

themodelplumber 12y ago

From the BBC video: "They rode the wave as it swept them above the trees and washed them back into the bay." Wow! I think I would be ready to move to the desert after experiencing something like that.

sandworm 12y ago

This was discussed in my geology course at UBC. The prof was adamant that this was not a "true" tsunami, that it was a product of specific geology/geometry rather than a true sea-born wave triggered by geological-scale events. I guess he was correct in that this thing didn't have the total energy of a typical tsunami, but it was certainly enormous for those in the local area.

davidw 12y ago
This is a similar event in terms of a landslide sloshing into a body of water. Smaller in scale, but far more lives were lost. http://en.wikipedia.org/wiki/Vajont_Dam http://en.wikipedia.org/wiki/Vajont_Dam

cshimmin 12y ago

I was fascinated by this article, so I was trying to explain it to my colleagues. I was enthusiastically sketching the bay and glaciers on the chalkboard when I suddenly became very embarrassed, as I realized I was basically drawing a big uterus on the board :S

jkot 12y ago

Thera eruption was probably taller when it hit Crete.

sandworm 12y ago

Is it safe to assume that some meteor impact in the distant past must have had a taller wave, something measured in kilometres?

NamTaf 12y ago
Not sure. Part of what makes this one so high is that the displaced water can only go in one direction. It'd be a pretty coincedental impact for a meteor to hit somewhere where that can happen.

dmd 12y ago

So if this sort of thing has happened within living memory, it's probably fairly common.

junto 12y ago

There are a fair few potential 'megatsunamis' waiting out there. The Canary Islands one could be particularly devastating since theoretically half the island on La Palma could slide into the sea. http://en.m.wikipedia.org/wiki/Megatsunami http://en.m.wikipedia.org/wiki/Megatsunami