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Earth-Facing Sunspot 4366 Fires Off New X-Class Flares as Agencies Issue Geomagnetic Watch

So far, effects remain minor, chiefly shortwave radio blackouts with weak geomagnetic activity.

Overview

  • Over the past 24 hours, the active region produced four X-class and 23 M-class flares, according to Spaceweather and NASA imagery.
  • NOAA’s Space Weather Prediction Center has a G1 geomagnetic storm watch in effect as forecasters evaluate additional Earth-directed activity.
  • A powerful X8.1 flare on Feb. 1 launched a coronal mass ejection that largely missed Earth, followed by an X1.5 event on Feb. 3.
  • A Feb. 4 eruption caused temporary shortwave radio outages across parts of southern Europe and western Africa and only a weak geomagnetic response.
  • The sunspot cluster, many times Earth’s size and pointed toward Earth, is under continuous NASANOAA monitoring for risks to satellites, navigation, power systems and astronauts, with reporting linking the activity to an Artemis II launch delay.