Seismological devices all around the world detected this. Hardly a sensational title: it was a 110 meter tsunami bouncing around between two fjords for 9 days! This is roughly the planetary equivalent of when you're a kid in the bath tub and you start getting tiny waves to go back and forth between two ends of the tub until you finally make a mess, only that initial wave is 110 meters high!

Those devices detecting it isn’t the same as what people expect when you read “shook earth”. They are after all, sensitive devices. And the height of the tsunami isn’t that interesting given the geography of the fjord. The historical records for high water marks tend to always be set in fjords.

Is it? The article seems to indicate that stations geographically remote from the fjord recorded an unusual signal that was later connected to the landslide event.

I mean, technically, "seismology" is all about shaking the earth.

The next level of pedantry is pointing out that it’s not limited to the earth.

And the level after that is making the distinction between "earth" and "Earth".

And before the quartic pedants say "well, all earth is on Earth", there's some in planes, on the space station and probably a few molecules scattered by impacts and human space exploration.

Quintic pedants will then question if, after being in space environments for long enough, a scrap of outgassed irradiated earth is still properly called earth? So isn't all "real" earth still gravitationally bound to the Earth?

Sextic pedants may be the first to notice everyone else has left them to squabble and gone to the pub.

> isn't all "real" earth still gravitationally bound to the Earth

Another (sub)level of pedantry: earth will always be bound to the Earth because gravitational force never really reaches zero no matter how far the objects are from each other thus earth can still be called earth?