The whole Earth was affected for 9 days after the super tsunami

Scientists say a landslide and mega-tsunami in Greenland caused unprecedented seismic activity and had widespread impacts, demonstrating the effects of global warming.

A landslide and megatsunami occurred in Greenland in September 2023 and shook the entire Earth for 9 days. The climate crisis led to this landslide and megatsunami.

Earthquake sensors around the world have picked up the remarkable phenomenon. However, because it is unprecedented, researchers do not know the cause.

After finding the solution, scientists said it showed how widespread global warming was and how large landslides could occur in places previously thought to be stable as temperatures rise rapidly.

A 1,200-metre-high mountain collapsed into Dickson Fjord on September 16, 2023, after melting glaciers below could no longer support the cliff. It caused an initial wave as high as 200 metres, and then the water pounding back and forth in the winding fjord sent seismic waves across the planet for more than a week. The tsunami fell to 7 metres in a matter of minutes and dropped to mere centimetres a few days later.

This was the first landslide and megatsunami recorded in eastern Greenland. Arctic regions are being affected most rapidly by global warming, and similar smaller seismic events have been recorded in western Greenland, Alaska, Canada, Norway and Chile.

“This signal is much longer and simpler than an earthquake signal, which usually lasts for minutes or hours. It is also unusual because it is the first large landslide and tsunami we have recorded in East Greenland,” said Kristian Svennevig of the Geological Survey of Denmark and Greenland, lead author of the report.

The tsunami destroyed a research station on Ella Island, 70km from the landslide. The site was established two centuries ago by hunters and explorers and used by scientists and the Danish military, but was abandoned at the time of the tsunami.

Dickson Fjord is also on a route often used by cruise ships. A boat carrying 200 people became stuck in mud in the Alpefjord, near Dickson Fjord, last September. The ship was freed just two days before the tsunami hit, avoiding waves estimated to be between four and six metres high.

A total of 68 scientists from 40 entities and 15 countries joined forces to solve this mystery by combining satellite data, seismic data, field data, high-resolution computer simulations, etc.

The research, published in the journal Science, estimates that up to 25 million cubic metres of rock and ice fell into Dickson Fjord and then moved a further 2,200 metres.

Such events will become more common as global temperatures continue to rise. “For the first time, we can see quite clearly that a climate change-induced event is causing global vibrations under our feet, all over the world,” said Professor Anne Mangeney at the Institute of Global Physics in Paris in France. “Those vibrations travel from Greenland to Antarctica in less than an hour. So we’re seeing the impact of climate change impacting the whole world in just one hour.”

According to Ha Linh/Tin Tuc Newspaper

Source: https://doanhnghiepvn.vn/cong-nghe/toan-trai-dat-bi-tac-dong-den-9-ngay-sau-sieu-song-than/20240914115244387