Big rockslide in Greenland fjord
2024-09-16 20:23:51.115651+02 by Dan Lyke 0 comments
A rockslide-generated tsunami in a Greenland fjord rang Earth for 9 days.
A large rockslide occurred in Greenland on 16 September 2023 that generated a local tsunami. The event was energetic enough to generate a global signal that resonated for 9 days. Svennevig et al. used a range of geophysical tools to detail the sequence of events that occurred and then determined the origin of the global signal. The authors found that the signal was generated by standing waves in the Dickson fjord due to the rockslide.
Some really cool stuff in here about the elevation data sets used to determine volumes. And some cool stuff about modeling waves of fjords. DOI: 10.1126/science.adm924
Via Ars Technica: Bizarre, nine-day seismic signal caused by epic landslide in Greenland.