Confirmation of weakening of the Earth's magnetic field between South America and Africa
Sebastian Castillo
© Earth's magnetic field - Earth's magnetic field has weakened - ESA Earth's magnetic field
According to the organism, the Earth's magnetic field, which protects us from cosmic radiation and charged particles emitted by the sun, has lost about 9% of its strength in the last 200 years.
The European agency, likewise, stated that between 1970 and 2020, the minimum intensity in the South Atlantic Anomaly fell from 24,000 to 22,000 nanoteslas, while its size increased.
Due to this expansion, this area "has moved west at a rate of 20 kilometers a year." In addition, a second center of minimal intensity recently appeared, located in southwest Africa, AEE added.
Despite the fact that the magnetic field is very important for humans not to die of radiation, the European body emphasized that this weakening in the South Atlantic Anomaly does not represent a danger.
“The new eastern minimum of the anomaly has been forming for a decade, although its development has accelerated in recent years. We are very lucky to have Swarm satellites to investigate its evolution. The challenge now is to understand the processes in the Earth's core that cause these changes, ”said Jürgen Matzka, a scientist at the German Geoscience Research Center (GFZ).
Some researchers from the United Kingdom and Denmark, meanwhile, point out that this weakening in the Earth's magnetic field is occurring as a result of a possible pole reversal, a phenomenon that occurs every 250,000 years, Infobae said.
Despite the fact that it is time for this fact to occur, AEE reiterated that the decrease in intensity that is currently occurring in the South Atlantic falls within what are considered normal fluctuation levels.
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