How does this 1300 tonnes stone travel up on a scale? Scientists just invented it

A giant stone in Tonga was riding a wave of an ancient tsunami 7,000 years ago. The 1300-ton scale traveled twice as large as a football field swept by the pure wave force, according to a new study.

But it was not an ordinary giant rock. He was also sitting in a 100-meter (30-meter) high rock before surfing to his new place-to embark on a past mega-tsunami that swept the region.

In July 2024, Martin Koler, a candidate for a Doctor of the University of Queensland and his team, did field work on the rocks of Tonga, looking for evidence of a past tsunami. In particular, they were looking for large stones that could be worn inside, which can tell the researchers a lot about the history of the tsunami in the regions, such as Tonga, predisposed to the earthquake.

On one of their last field days, some local farmers told researchers about the stone they might be interested in. The rock known to locals as LocationOr literally a “big rock” has never been studied by scientists. He may have escaped from previous satellite searches for rocks, driven by tsunami because of his thick vegetable layer.

The bowl is made of coral reef Breccia limestone, suggesting that it came from somewhere near the shore. “I was so surprised; it is far inside out of our field work area and must be transferred by a very large tsunami,” said Koler in a statementS Researchers’ findings have been published in the magazine Maritime geologyS

Later, the researchers found a huge gas in height 100 feet (30 meters) near the ocean, about 650 feet (200 meters) from Boulder’s current position. They also determined that the rock was deposited 6,891 years ago before people settled on Tonga.

Researchers measure the stone by 45 by 40 by 20 feet (14 by 12 by 7 meters in height, approximately the size of a two -storey house. Now it has the honor of being the third largest tsunami rock in the world. And this is the largest stone that is known to have surfed with a rock tsunami.

The team then uses computer modeling to find out about how tall the ancient tsunami is that it carries Location It must have been. They concluded that the tsunami was at least 164 feet (50 meters) and it would take about a minute and a half to pass. The tsunami probably reaches a speed of over 70 miles per hour (113 kilometers per hour). He was huge and very powerful and the researchers believe that a landslide, not an earthquake, initially triggered the wave.

Tonga sees a lot of geological activity that can cause tsunami, such as Devastating tsunami in 2022.S Understanding more about the mechanics of the past tsunami can help researchers better prepare for future events, said co-author Ani Lau, a coastal geomorphologist at the University of Queensland.

“The analysis is strengthening our understanding of the transport of rock waves to improve the estimates of coastal and falling in the tsunami areas around the world,” Lau said.