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This curious event took place just a year ago and caused waves that reached a distance of more than 50 kilometers
If you read the title of this news, you may think that it refers to a phenomenon that occurred hundreds of years ago. However, it was in September 2023 when a megatsunami in Greenland that caused waves that lasted weeks. This was recently discovered by the German Research Center for Geosciences GFZ and the German University of Potsdam in a research published in GeoScienceWorld.
It all started with a landslide in a Greenland fjord, a slide that occurred with such force that it caused a megatsunami that sent waves through the waterway for a full week. Specifically, This event is called seiche and researchers hope to recognize it more quickly in the future, as it is a phenomenon that can cause the loss of human life.
The Greenland megatsunami that lasted weeks
Researchers from the German Research Center for Geosciences GFZ and the German University of Potsdam have worked together to analyze the data collected by various satellites and seismic activity stations located in areas such as Germany, Alaska and North America. Thus they have confirmed that just one year ago, in September 2023, it took place in Greenland a most curious phenomenon.
It all started with a strong landslide in a fjord on this large island located between the Atlantic Ocean and the Arctic Ocean. The force of this slide was such that caused a megatsunami also of great magnitude which, in turn, gave rise to small waves that took place over a full week. This event, which is called seiche, could be recorded thanks to signals that traveled up to 5,000 kilometers across the entire planet.
The curious event can be divided into 3 different phases | Photography by GeoScienceWorld
In fact, one of the things that caught the researchers’ attention the most is the fact that they were able to record for more than a week worldwide signals caused by a wave caused by a rockfall. This is how geophysicist Angela Carrillo-Ponce explains it. in a publication of the Seismological Society of Americaa key part of this research, which adds that These detection technologies are very important in monitoring areas as remote as Greenland.
The study of the information collected by satellites and seismic activity centers has also confirmed that the tsunami reached reach 200 meters high above sea level, in addition to reaching a distance of more than 50 kilometers.
Carrillo-Ponce also explains the importance of this discovery for the future. “Analysis of the seismic signal can give us some answers about the processes involved and may even lead to better monitoring of similar events in the future”points out the researcher.
The signals of the Greenland megatsunami spread throughout the planet | Photography by GeoScienceWorld
Taking into account the process of climate change in which the planet is currently immersed, it will be normal for there to be more and more changes in the glaciers and, therefore, more possible landslides like the one that took place in Greenland in 2023. Therefore, monitoring this area can help detect these events in advance and, in that way, protect people that could be affected.
This is not the first time we have talked about large tsunamis on Andro4all, as we have already commented the case of father and son who survived the highest megatsunami ever recorded. Speaking of big waves, we can also remember that ghost waves could be gigantic in sizeeven be 4 times higher than imagined.
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