• X1.0 solar flare erupts from geoeffective Region 4455

    An X1.0 solar flare erupted from Active Region 4455 at 11:28 UTC on June 3, 2026, producing R3 – Strong radio blackout conditions on the sunlit side of Earth. This is the third major flare from the same region today, following M9.3 at 01:36 UTC and M7.7 at 07:00 UTC.

  • X2.5 solar flare erupts at 08:13 UTC, second X-class event of April 24

    An X2.5 solar flare erupted from Active Region 4419 at 08:13 UTC on April 24, 2026, marking the second X-class event within hours after an earlier X2.4 flare at 01:07 UTC. The event started at 08:01 UTC and ended at 08:18 UTC. The flare produced strong radio emissions and reached R3 (Strong) radio blackout levels on the sunlit side of Earth.

  • Major X2.4 solar flare erupts near Sun’s west limb

    A major X2.4 solar flare erupted from Active Region 4419 at 01:07 UTC on April 24, 2026. The event started at 00:51 UTC and ended at 01:13 UTC. A large coronal mass ejection was produced, but it’s not expected to be Earth-directed. This is the first X-class solar flare since X1.4 on March 30.

  • Impulsive X4.2 solar flare erupts from geoeffective Active Region 4366

    An impulsive X4.2 solar flare erupted from geoeffective Active Region 4366 at 12:13 UTC on February 4, 2026. The flare originated from a magnetically complex beta-gamma-delta region that produced dozens of M- and 5 other X-class flares since February 1. Its location near the central solar disk raises the possibility of Earth-directed coronal mass ejections (CMEs) this week.

  • Major X8.1 solar flare erupts from AR 4366 following explosive growth

    A major X8.1 solar flare erupted from Active Region 4366 at 23:57 UTC on February 1, 2026, following rapid magnetic expansion and intense flaring throughout the day. The region also produced an X1.0 flare at 12:33 UTC on February 1 and an X2.8 event at 00:36 UTC and an X1.6 at 08:14 UTC on February 2, accompanied by more than 20 M-class flares since 02:00 UTC on February 1.

  • Major X1.0 flare erupts from Region 4366, Earth-directed CMEs possible in days ahead

    A major X1.0 solar flare erupted at 12:33 UTC on February 1, 2026, from Active Region 4366, following a sequence of strong M-class flares earlier in the day, including M6.6 and M6.7 flares within two hours. The event started at 11:52 and ended at 12:38 UTC. With the region now rotating toward the center of the solar disk and maintaining a complex beta-gamma-delta magnetic configuration, conditions are favorable for Earth-directed CMEs in the days ahead.

  • Long-duration X1.9 solar flare erupts from Region 4341, Earth-directed CME produced

    A long-duration X1.9 solar flare erupted from Active Region 4341 at 18:09 UTC on January 18, 2026. The event began at 17:27 and ended at 18:51 UTC. Coronagraph imagery indicates that a full halo coronal mass ejection (CME) was produced during the eruption. Given the location of the source region on the solar disk, the CME is considered likely to be at least partially Earth-directed, pending further analysis of its speed and magnetic structure.

  • Major X1.9 solar flare erupts from AR 4299, producing partial halo CME

    A major solar flare registered as X1.9 erupted from Active Region 4299 at 02:49 UTC on December 1, 2025. The event started at 02:27 and ended at 03:05 UTC. This region is currently making its second run through the Earth-side of the Sun, after producing multiple X-class flares in early November.