A new sunspot is emitting solar flares: A strong geomagnetic storm will hit the Earth between 30 and 31 October.

A strong G3-class geomagnetic storm could occur this Saturday, October 30, when the coronal mass ejection (CME) from the solar flare that occurred on Thursday 28, type X1, hits the Earth’s magnetic field. geomagnetic, it is worth explaining what it is.

Coronal mass ejections (EMC) consist of the release of large amounts of matter from the solar atmosphere, originating from the solar corona during strong and long-lasting solar flares and resulting from large-scale magnetic instabilities. They are one of the most spectacular events in solar activity, ejecting billions of tons of plasma, as well as their encrusted magnetic fields, into space.

Storms like this, scheduled for October 30, can trigger auroras visible to the naked eye as far south as Illinois and Oregon (typically 50 degrees geomagnetic latitude) and photographic auroras at even lower latitudes.

Minor storms of classes G1 and G2 may persist until Halloween. When it comes to solar flares, these are huge bursts of radiation from the Sun that shoot radiation-charged particles out of the star. According to NASA, these are lettered, with Class C relatively weak, Class M moderate and Class X the strongest.