1 and 2. Visualization and sonification of Earth’s magnetic flip 41,000 years ago Source: https://www.esa.int/ESA_Multimedia/Videos/2024/10/Sound_of_Earth_s_magnetic_flip_41_000_years_ago 3. Graph of Earth's magnetic field strength between 30 and 48 ky ago Source: https://www.sciencedirect.com/science/article/abs/pii/S0012821X13006651

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   AkaSci 🛰️ (akasci@fosstodon.org)'s status on Tuesday, 24-Dec-2024 18:20:48 JST AkaSci 🛰️

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   “Geomagnetic excursions” are shorter-lived but significant changes to earth's magnetic field. Excursions happen about 10 times as often as pole reversals.

   The well-studied Laschamps event between 42K and 41K years ago, caused Earth's magnetic pole to drift south and decline in strength to ~5% of its current strength.

   The weakening of the magnetosphere is claimed to have contributed to the extinction of Australian megafauna and the extinction of the Neanderthals.

   https://en.wikipedia.org/wiki/Laschamp_event
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