https://www.youtube.com/watch?v=Uyt7VzMfbzc or https://www.youtube.com/watch?v=Uyt7VzMfbzc ;
200 Meter Tall Megatsunami In Greenland Produced Unusual Effects
In September 2023, a megatsunami in Dickson Fjord sent seismic waves detected around the world. One seismic signal was detected from the rockslide which created the tsunami, and another very long-period signal from a week-long oscillating seiche wave between the shores of the fjord that was triggered by the tsunami.[5] DJ, Melting permafrost is causing more and more landslides resulting in large-but most local-tsunami's. In polar regions, mountains, often ice is a glue keeping rock-pieces glued together...Melt may bring collapse of parts of a mountain/fjord-with the collapse pulling more land with it...
The tsunami itself may even result in more melt/landslide with waves -sometimes 200 meters high !- (but very local in a mountain lake or a small piece of water) melting snow/ice...
In September 2023, a megatsunami in remote eastern Greenland sent seismic waves around the world, piquing the interest of the global research community.
DJ; Anton Petrov-maker of the YT video-claims there is an increase of these kinds of landslides. Seismic data and satellite pictures detect the results of such tsunamis.
DJ-My view; In theory even larger landslides/bigger tsunamis are possible.
A recent hypothesis suggests that around 6200 BCE much of the remaining coastal land was flooded by a tsunami caused by a submarine landslide off the coast of Norway known as the Storegga Slide. This suggests "that the Storegga Slide tsunami would have had a catastrophic impact on the contemporary coastal Mesolithic population ... Britain finally became separated from the continent and in cultural terms, the Mesolithic there goes its own way."[14] It is estimated that up to a quarter of the Mesolithic population of Britain lost their lives.[15
DJ, So underwater landslides can result in mega-tsunamis. Permafrost underwater "hills" collapsing due to warmer ocean water could result in such tsunamis.
