The largest solar flare in seven years, measuring X9.05, occurred



Following the solar flare measuring X7.1 that occurred on October 1, 2024, a solar flare measuring X9.05 occurred on October 3, the largest since 2017.



CME emergency information (October 4, 2024 00:30 JST) | Space Weather Forecast
https://swc.nict.go.jp/report/view.html?ids=a2024170

X9.0 solar flare! Strongest flare of Solar Cycle 25! | SpaceWeatherLive.com
https://www.spaceweatherlive.com/en/news/view/558/20241003-x9-0-solar-flare-strongest-flare-of-solar-cycle-25.html

Biggest solar flare since 2017 erupts from sun and Earth is in the firing line (video) | Space
https://www.space.com/most-powerful-solar-flare-this-solar-cycle-x-9-earth-firing-line

The year 2024 is the solar maximum, which affected GPS and other systems in May 2024. The maximum solar flare at this time was X8.7.

Solar flares disrupt farmers' GPS systems, causing agricultural machinery to stop working during sowing season - GIGAZINE


by

NASA Goddard Space Flight Center

The sun also became more active in October, erupting a solar flare of X7.1 from sunspot group AR3842 on October 1, followed by a solar flare of X9.05 on October 3. The news site Space reports that there was a large-scale shortwave radio outage in Africa and Europe, which were in the position of being illuminated by the sun at the time of the eruption. A solar flare is considered to be large when it is classified as 'X' class, but the X9.05 is the largest in the last seven years.

During the solar flare in May, auroras, which are usually only seen in polar regions or high latitudes, were observed in Japan and other places. Because the scale of this solar flare is even larger, it is expected that auroras will be observed over a wide area.

Summary of auroras seen in various countries such as Japan, the United States, Italy, and Mexico due to the explosion of the largest solar flare - GIGAZINE



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in Science, Posted by logc_nt