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7h ago

Solar Activity Surges as Second X-Class Flare Hits Overnight

Scientists say large active regions are rotating toward the Sun–Earth line, increasing the chance of geoeffective eruptions later this week.

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Overview

  • An X1.8 flare peaked at 20:34 Moscow time on November 4, followed hours later by an X1.2 event at 01:01 on November 5 recorded near the solar limb.
  • The geophysics institute reports the X1.2 originated beyond the visible disk and is not expected to affect Earth.
  • The flare-activity index jumped from roughly 4 to above 7 on a 10-point scale in 24 hours, signaling a sharp escalation.
  • Researchers say recent coronal mass ejections are directed away from Earth, though episodic geomagnetic disturbances remain possible.
  • Active regions cataloged as 4272/4274 and 4275 are returning to the Earth-facing side and could reach the central meridian by the weekend, keeping the risk of strong flares elevated.