According to geologic record in the minerals, Earth’s magnetic dipole polarity reversed many times during the planet’s 4.5 billion year history. The average time between reversals is 250 thousand years. There were no reversals in the last 780 thousand years. It seems that we are overdue for a reversal.
Earth’s magnetic field has weakened 10 times faster in the last 6 months
Earth’s magnetic field strength has been weakening in the last 2000 years. The trend accelerated in the past decades. There is news from the European Space Agency (ESA) that Earth’s magnetic field has weakened 10 times faster in the Western hemisphere in the last 6 months.
You can read the description of the results directly from the ESA article.
In the image above, shades of red show areas where the magnetic field is strengthening, and shades of blue show
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