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A scientific study published in the journal Nature showed that the Earth’s core has stopped and is probably spinning in the opposite direction to the surface, which could shorten the day by a few fractions of a second, influence the weather and the sea level.
Researchers Yi Yang and Xiaodong Song, both belonging to the Institute of Theoretical and Applied Geophysics of Peking University, are the authors of the work, in which they analyzed around 200 earthquakes in the South Sandwich Islands, near the South Pole, which occurred between 1960 and current dates,
This was done this way because the variation of the seismic waves that pass through the planet show the internal composition of the nucleus, as well as its speed of rotation.
After reviewing the movements with computer models, it was shown that The Earth’s core slowed down in 2009 and since then it has rotated slower than the crust.according to information collected by The country.
“Seen from space, the core rotates at almost the same rate as the rest of the planet. But from the point of view of the surface, where the seismic stations are, the core is now rotating in the opposite direction; to the west,” Song explained to the Spanish media.
But this phenomenon also happened in the mid-1970s, which would allow scientists to infer that there are oscillation cycles whose duration is seven decades.
The earth core, a planet within our planet, is composed of two parts: internal and external. To those who follow him earth mantle and the outer bark
.How much would the days be shortening due to the effects of the earth’s core?
The Chinese scientist Xiaodong Song explained that in recent years, the days were getting shorter and this could be due to the anomaly of the earth’s core, this would represent that a day is one thousandth of a second shorter today than it was in 1970.
In addition, the rotation of the internal part causes alterations in the internal gravitational field and causes deformations on the surface, which can influence the sea level, as well as affect the global temperature of the planet.
In addition Song, who in previous years worked in the United States, demonstrated in another study that the inner core of the earth rotates faster than the crust.
This means that the core makes one extra revolution around the rest of the planet every 900 years or so, which causes days not to be exactly 24 hours long; It is estimated that 1.4 billion years ago a day had approximately 19 hours. _With information from El País