M9.8 solar flare erupts from geoeffective Region 3500, Earth-directed CME likely
A very strong solar flare measuring M9.8 erupted from Active Region 3500 at 19:50 UTC on November 28, 2023. The event started at 19:35 UTC and ended at 20:09 UTC.
Strong M8.7 solar flare erupts from Region 3435
A strong solar flare measuring M8.7 erupted from Active Region 3435 at 12:54 UTC on September 21, 2023. The event started at 12:42 and ended at 13:02 UTC. This is the second M8+ solar flare since M8.2 at 14:11 UTC on September 20.
Strong M8.2 solar flare erupts from Region 3435
An impulsive solar flare measuring M8.2 erupted from Active Region 3435 at 14:19 UTC on September 20, 2023. The event started at 14:11 and ended at 14:25 UTC.
Double-peaked, long-duration M5.7 solar flare from AR 3363 produced asymmetric halo CME, S2 – Moderate solar radiation storm
A double-peaked, long-duration solar flare measuring M5.7 erupted from Active Region 3363 (beta-delta) at 00:06 UTC on July 18, 2023, producing an asymmetric halo CME and S2 – Moderate solar radiation storm.
Moderately strong M6.8 solar flare erupts from the NE limb of the Sun
A moderately strong solar flare measuring M6.8 erupted from a region located on the northeastern limb of the Sun at 18:08 UTC on July 11, 2023. The event started at 17:51 and ended at 18:16 UTC.
Strong M9.6 solar flare erupts from the southeast limb of the Sun
A strong solar flare measuring M9.6 erupted from an active region located on the southeast limb of the Sun at 16:43 UTC on May 16, 2023. The event started at 16:31 and ended at 16:51 UTC.
Solar radiation storm, CME produced by M4.2 flare expected to hit Earth on May 11
High solar activity was observed on May 10, 2023, primarily due to the enhanced flare potential of Region 3296. The most significant event from the region was an M4.2 flare, which resulted in a well-defined partial halo Coronal Mass Ejection (CME) signature, expected to hit Earth sometime after 18:00 UTC on May 11. The 10 MeV proton flux peaked at 38 pfu, dropped below Minor – S1 solar radiation storm levels by 12:35 UTC on May 9, but still above average, and then rose back over the 10 pfu threshold due to the May 7 CME passage.
M6.5 solar flare erupts from Region 3296, CME produced on May 7 heading our way
A moderately strong M6.5 solar flare erupted from Active Region 3296 at 03:54 UTC on May 9, 2023. The event started at 03:42 and ended at 04:05 UTC. This was the 12th M-class solar flare since M4.3 on May 3. It was followed by M1.2 at 06:13 UTC, also from Region 3296. The CME produced on May 7 was modeled and analyzed and the likely result is impact to Earth late on May 10 to early May 11.
Long-duration M3.9 solar flare erupts from Region 3296, CME produced
A long-duration M3.9 solar flare erupted at 08:44 UTC on May 4, 2023. The event started at 08:05 and ended at 09:08 UTC.
Moderately strong M7.2 solar flare erupts from Region 3293
A moderately strong M7.2 solar flare erupted from Active Region 3293 at 10:45 UTC on May 3, 2023. The event started at 10:36 and ended at 10:49 UTC.
