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Watched a documentary in CNA today. They said that the maximum height an earthquake generated tsunami would be around 10 metres or so, though it might be higher, but not to the extend to the 3 digits.redstone said:The highest tsunami is 524m high, speed 160km/h.
Hit Lituya Bay in Alaska on 9 July 1958.
Theorectically, a landslide at the Canary Islands' west side could devestate the whole east coast of USA.CW8 said:Watched a documentary in CNA today. They said that the maximum height an earthquake generated tsunami would be around 10 metres or so, though it might be higher, but not to the extend to the 3 digits.
The tsunamis that are super high are called Mega Tsunamis. And they're formed mainly through massive landslides. The Alaskan one was featured in the documentary, and what happened was a massive piece of rock from a surrounding mountains, dropped straight into the coastal water. Creating waves and tsunamis 500+ metres in height. The waves smashed through the lower lying forests on the lands and mountains devastating everything. Luckily there wasn't people living there, only a few boats and 2 people managed to survive that by riding the waves somehow, to the top of the forests and dragged back down safely to the shore.
They also mentioned that a particular volcanic island in North Africa has it's entire west side weakened and might collapse in a few more eruptions. But each eruption takes a few decades and will not happen anytime soon. But if the island does collapse crashing into the sea, the resulting tsunami will be so powerful it'll travel the whole Atlantic Ocean in around 8 hours and will be probably be as high or higher than the Alaskan one, and crash down on North American coastal cities, destroying cities like New York. And then even the tallest skyscrapers will not be spared.
So you can pretty much imagine what a meteor around 2-3KM in width when dropped in the centre of the Pacific Ocean is able to do.