The scale is explained here: http://www.swpc.noaa.gov/noaa-scales-explanation (c... | Hacker News

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colanderman on Sept 8, 2017 | parent | context | favorite | on: Continued G4 (Severe) Geomagnetic Storming Observe...

The scale is explained here: http://www.swpc.noaa.gov/noaa-scales-explanation (click on "Geomagnetic storms")

daenney on Sept 8, 2017 [–]

Ah, lovely. Thanks for the pointer!

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