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Based on paleointensity data for the last 800,000 years, [56] the magnetopause is still estimated to have been at about three Earth radii during the Brunhes–Matuyama reversal. [48] Even if the internal magnetic field did disappear, the solar wind can induce a magnetic field in the Earth's ionosphere sufficient to shield the surface from ...
The cataclysmic pole shift hypothesis is a pseudo-scientific claim that there have been recent, ... This page was last edited on 31 January 2025, at 06:41 (UTC).
The Laschamp or Laschamps, also termed the Adams event [1], was a geomagnetic excursion (a short reversal of the Earth's magnetic field). It occurred between 42,200 and 41,500 years ago, during the end of the Last Glacial Period.
The Brunhes–Matuyama reversal, named after Bernard Brunhes and Motonori Matuyama, was a geologic event, approximately 781,000 years ago, when the Earth's magnetic field last underwent reversal. [ 1 ] [ 2 ] Estimations vary as to the abruptness of the reversal.
Another idea tied to 2012 involved a geomagnetic reversal (often referred to as a pole shift by proponents), possibly triggered by a massive solar flare, that would release an energy equal to 100 billion atomic bombs. [120]
Charles Hutchins Hapgood (May 17, 1904 – December 21, 1982) [1] was an American college professor and author who became one of the best known advocates of the pseudo-scientific claim of a rapid and recent pole shift with catastrophic results.
The pole drifts considerably each day, which results in a change of 5-60 km per year. The speed of the change was around 10 km/year for the majority of the 20th century, then increased in the 1990s to over 50 km/year, but slowed down slightly after 2020. [1] [2] The South magnetic pole is constantly shifting due to changes in the Earth's ...
The following is a list of geomagnetic reversals, showing the ages of the beginning and end of each period of normal polarity (where the polarity matches the current direction).