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Discovery of ‘boomerang earthquake’ rocked scientists



It is a haifer tectonics.

While earthquakes are known to destroy things once and depart, they have never been recorded to return to help with the second destruction – so far.

In a new seismic study published in Nature Geoscience, an international team of geologists discovered evidence of a “boomerang earthquake” – a type of earthquake that can shake – cause rocked the seabed below the Atlantic Ocean in 2016.

Stephen Hicks, an earthquake seismologist at Imperial College London, said: “Our new study provides some of the clearest evidence for this mysterious mechanism to occur in a real error.

Underwater seismographs detected tectonic terror traversing the Romanche Fracture Zone, a 560-mile fault located nearly halfway between Brazil and Africa, according to a National Geographic report. The team then analyzed the earthquake̵

7;s epicenter position and the energy released from each rumbling phase to put the pieces together.

They found that while conventional temblors focused their energy in one direction, the 7.1-magnitude monster – known as a “back-propagating ultrasonic fracture” – was said to tear. Toss east before doubling back and continuing in the opposite direction of the acceleration speed.

“This is a strange configuration,” said Hicks of the earthquake.

Even more horrifying, the tremor traveled at 11,000 miles an hour during the return trip – so fast that it produced geology the equivalent of an explosion of sound. Or to put it simply, fast enough to fly from London to New York in 18 minutes.

Unfortunately, researchers are not entirely sure what caused the boomerang earthquake. “Although the fault structure looks simple,” Hicks said, “the way earthquakes evolved is not, and this is in stark contrast to how we predict the earthquake.

However, it was an interesting finding considering the seismic occurrence, so far, mostly observed only in theoretical models. “To my knowledge, this is the first time it has been reported,” geophysicist Yoshihiro Kaneko from GNS Science in New Zealand told National Geographic.

These groundbreaking findings could help researchers understand how “boomerang earthquakes” can affect areas, according to Kasey Aderhold, a seismologist with the Integrated Seismic Research Foundation. populated like.

This is not the first geological phenomenon that scares scientists. Seismologists have warned that last year’s concussion in Southern California increased the likelihood of a major earthquake in the San Andreas Fault.


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