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Comment by antman | Hacker News Reader

Depends on the surrounding terrain and if you are on street level. This video here has moments that if you are on street level it crashes all around 4:30 https://youtu.be/EPjliKVtmUA?si=5ELV7bnxkQBa_xZt

For example last year's Greenland Tsunami that was in a fjord reached 200m height and a top speed of 150km per hour.

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Landslip / glacierslip 'tsunamis' in confined waters are not really the same as those from subsea earthquakes. The landslips just slop the water along the fjord or bay. The volume of water is tiny compared to big 9.0 oceanic quakes, like those for the Indian Ocean (2004) or Japanese (2011) tsunamis. We really need a different word for the local landslip type.

Here is a famous landslip-tsunami event with one eyewitness account:

https://en.wikipedia.org/wiki/1958_Lituya_Bay_earthquake_and...

See the book Wildest Alaska: Journeys of Great Peril in Lituya Bay by Philip Fradkin.

P.S. Yes, an earthquake triggered the landslip, but the earthquake did not displace the water.

Wow, I was really sad to see the number of people still running/driving up that narrow street as the waves crashed in, absolutely tragic.

> For example last year's Greenland Tsunami that was in a fjord reached 200m height and a top speed of 150km per hour.

There is no video right?

No video since nobody was around, just one abandoned station. But - the waves revertebrated in the fjords for next 9 days as its seismic impact was recorded all over the world.

Yeah, I read that, that's why I wanted to see if there was a video :(

Your video supports the comment you are replying to. What you are seeing is water splashing up as it rolls into the buildings.

Compare to this image from the Wikipedia article about the Lituya Bay megatsunami: https://upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Li...

There wasn't a breaking wave in the Japan tsunami:

https://en.wikipedia.org/wiki/Breaking_wave

In the video you are seeing the incoming flow of water smash into structures and splash into the air.

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