Scientists baffled: Unexplained magnetic storm occurred on Earth on September 10

Geostorm assigned level G2

A G2-level magnetic storm occurred on Earth. It was recorded on the night of September 10, according to the Solar Astronomy Laboratory of the IKI and ISZF.

The main causes of magnetic storms are usually related to solar phenomena (plasma clouds or solar wind flows). However, graphs showing solar wind activity did not record any significant changes. Scientists were unable to explain the occurrence of the geomagnetic storm.

Apparently, the only explanation for what happened that looks even remotely scientific is the formation of a so-called unusually large substorm — a phenomenon in which the energy of the magnetosphere is released without obvious external causes due to internal processes. This usually refers to a spontaneous disturbance of equilibrium in the tail of the Earth's magnetosphere (an extended structure that stretches for more than 100 thousand kilometers in the anti-solar direction). 
Solar Astronomy Laboratory of the IKI and ISZF

This is the first such major event this year. The geomagnetic situation has already stabilized.

Earlier www1.ru reported that a geomagnetic storm hit Earth on September 2.

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