This situation is known as the Lashamp event. This is the nickname for the short-term change in the Earth’s magnetic field (geomagnetic excursion), which occurred 41,400 years ago, at the end of the last ice age.
The other day during the annual conference, scientists reported that the magnetic field took about 1300 years to return to its previous values. During this time, the auroras have moved to near-equatorial latitudes, where they, as a rule, are never observed.
This period of intense geomagnetic changes could also cause changes in the Earth’s atmosphere that affected living conditions. There are suggestions that this led to the extinction of many species.
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