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Can Russia's Poseidon nuclear underwater drone create a 500 meter tidal wave?

Most tsunamis are created by seabed displacement of large areas. Let's say a tectonic plate snaps and part of it is raised higher, the other part goes below. So a very large amount of water changes ...
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-4 votes

Can Russia's Poseidon nuclear underwater drone create a 500 meter tidal wave?

This isn't an answer, but gives some visual context of the depth of the sea floor around Britain At the red dot it is 5000 meters deep: Tsunamis can grow a lot when they hit shallow water around land ...
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25 votes

Can Russia's Poseidon nuclear underwater drone create a 500 meter tidal wave?

No multi-megaton nuclear warhead ever has been exploded underwater, so the best we can hope for in the way of sources is "what is the research on this". Wikipedia: Underwater explosion -- ...
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19 votes

Can Russia's Poseidon nuclear underwater drone create a 500 meter tidal wave?

Well, nobody has tested really, really big nuclear bombs underwater. But we do have some underwater tests we can look at. In 1946, the US tested a 21 kt bomb underwater in Operation Crossroads. You ...
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3 votes

Can Russia's Poseidon nuclear underwater drone create a 500 meter tidal wave?

There's a big problem here: Let's suppose the bomb can actually produce a 500m wave near the point of detonation--what happens? The circumference of a circle is linear to it's radius--double the ...
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