How Japan’s Discovery Of ‘Weather Bomb’ Could Unlock Secrets Of The Earth’s Core

Aug 31, 2016 07:11 AM EDT | Rubi Valdez


Japan meteorologists have discovered a rare tremor phenomenon called the "weather bomb" deep within the Earth's core that could unravel great mysteries of the planet. The S waves were detected in the North Atlantic Ocean off the coast of Greenland.

"Using a seismic array in Japan, we observed both P and S wave microseisms excited by a severe distant storm in the Atlantic Ocean," researchers Kiwamu Nishida and Royta Takagi wrote. "The seismic energy traveling from weather bombs through the Earth appears to be capable of illuminating the many dark patches of Earth's interior."

The tremor is reported to be traveling at a velocity of 20 to 22.2 kilometers per second.

Peter Bromirski, a faculty from the University of California San Diego, said most of what is known about the physical structure of the Earth are derived from studies on the lower crust, mantle, and the core. He emphasized the need for the elusive S waves which are quite rare due to seldom earthquakes in the mid-Pacific, BBC reported.

The journal Science, which published the recent findings, explained that the S waves are usually hard to detect because it fades as the Earth's interior moves. P waves, on one hand, are detectable by animals signaling a forthcoming earthquake, reported Nature World News.

Experts said these new findings will help them better understand what happens underneath the Pacific Ocean. When asked how accurate the data can be, seismologists said that five-day forecasts nowadays are proven to be more reliable than three-day forecasts two decades ago. However, there may be slight variations depending on the season and weather types.

The pattern of P and S waves were detected by 202 borehole seismometers stationed in Chugoku district in Japan. Geologists are positive that if the same technique is applied in future storms, they will be able to further study Earth's deepest structures.

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