this post was submitted on 11 Sep 2024
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In September 2023, a massive tsunami in remote eastern Greenland triggered seismic waves that captured the attention of researchers worldwide.

The event created a week-long oscillating wave in Dickson Fjord, according to a new report in The Seismic Record.

Angela Carrillo-Ponce of GFZ German Research Centre for Geoscience and her colleagues identified two distinct signals in the seismic data from the event: one high-energy signal caused by the massive rockslide that generated the tsunami, and one very long-period (VLP) signal that lasted over a week.

Their analysis of the VLP signal—which was detected as far as 5000 kilometers (3100 miles) away—suggests that the landslide and resulting tsunami created a seiche, or a standing wave that oscillates in a body of water. In this case, the seiche was churning for days between the shores of Dickson Fjord.

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[–] [email protected] 13 points 1 week ago (1 children)

Man I'd love to see videos of that wave.

[–] [email protected] 3 points 1 week ago

Now imagine it oscillating around the fjord for a week.

O.O