We Now Know Why Earth Vibrated for Nine Days in 2023 https://www.wsj.com/science/greenland-tsunami-global-seismic-vibrations-afadd21f
An earth-science detective squad has solved the mystery of a puzzling disturbance that rattled the planet, The evidence revealed that 33 million cubic yards of rock and ice—the volume of 10,000 Olympic-size swimming pools—had plunged into the Dickson Fjord in eastern Greenland, triggering a tsunami.
The massive wave crested at 650 feet above the water’s surface, throwing debris onto a nearby rock face. It settled down to 25 feet, but over the next nine days, it sloshed from one side of the ord to the other, striking the sides with enough force to move the walls, creating
the seismic signal that propagated around the planet, Svennevig said.
Climate change triggered a mega-tsunami that caused the Earth to vibrate for nine days https://www.euronews.com/green/2024/09/13/climate-change-triggered-a-mega-tsunami-that-caused-the-earth-to-vibrate-for-nine-days
A 1.2km-high mountain peak collapsed into Greenland’s remote Dickson Fjord in September last year. An estimated 25 million cubic metres of rock and ice crashed into the fjord - enough to fill 10,000 Olympic-sized swimming pools.
Trapped in the narrow fjord, the water splashed back 200 metres in the air. It generated a 110 metres high wave which extended 10km across the fjord - but reduced to 7m within minutes.
https://youtu.be/5et66s74OGs