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.
Man I’d love to see videos of that wave.
Now imagine it oscillating around the fjord for a week.
O.O
That’s basically the wave in the water planet scene from Interstellar. That’s terrifying.
65o feet, for reference, is exactly the height of this building in NYC: https://en.wikipedia.org/wiki/712_Fifth_Avenue
