A massive landslide in Dickson Fjord, Greenland, in September 2023, generated a 650-Foot Tsunami Waves that traveled out from the fjord and produced seismic waves around the world for nine days. When john Brouwer and his colleagues at the University of Tromsø had witnessed this event, they discovered that it was an exceedingly rare occurrence to have observed and even more astonishingly, so far from all their studying. It changed everything we knew about natural disasters.
This mega tsunami was started with a massive rockslide. The most colossal rockslide I’d witnessed when whole mountains worth of ice and rock fell down into Dickson Fjord. The collapse generated large waves that spooled a tissue of large waves first speeding out through Dickson Fjord but bouncing off opposing cliffs to create a seiche! A seiche relied on the long-wave hydraulic pulse sustained from point source shown in the seismic records found globally.
Seismic stations all over the world generated an unusual rhythmic signal that repeated every 90 seconds. Jon found the same repeating pulse from Alaska to Australia and began to search for the source of such a large event. Then, using SWOT (satellite data) he was able to show the overall oscillation of the wave, and that it continued to pulse.
The vibrations of the tsunami were felt from sensors around the world in North America. The sensors in Alaska picked up the oscillating pulse. In Europe, geological surveys were analyzing the event in Denmark and France. In Asia and Australia, seismic stations had detected the tremors thousands of miles from the source of the disturbance.
Scientists noted that the melting ice caps of Greenland meant that there was an increased risk of geological disaster. As the grounded ice retreat along the west slope of Greenland, the mountain slopes now remained without natural support. Increasing the chance for landslides, mega-tsunamis, and an assortment of geological disasters.
Is it Possible to Anticipate a Tsunami?
Scientists are currently focusing on new early warning systems powered by satellites and seismic monitors. Especially to monitor such events when potential early warning events occur. Future models of artificial intelligence will be used for comprehensive predictions of extreme tsunami waves before they are discovered.
The 650-foot tsunami off the coast of Greenland acts as a tremor about the reality of climate change for climate scholars. And also geologists. Having a better understanding of rare geological events can improve disaster planning. And preparedness among the regions most likely to suffer from such disasters again.
ALSO READ: Massive earthquake of magnitude 6.0 hits Greece, Tsunami warnings issued
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