Greenland Landslide Triggers Nine-Day Global Seismic Signal

A massive landslide in East Greenland caused a mega-tsunami and unprecedented seismic vibrations linked to climate change.

In September 2023, a 1.2km-high mountain peak collapsed into Dickson Fjord, creating a 200-meter-high mega-tsunami.
The landslide generated a unique, nine-day-long seismic signal detected globally, featuring a single oscillation frequency.
Researchers linked the event to glacial thinning caused by climate change, destabilizing 25 million cubic meters of rock and ice.
The international team used seismic data, satellite imagery, and simulations to reconstruct the event and understand its dynamics.
This event underscores the increasing frequency of climate change-induced landslides and tsunamis in polar regions.