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.
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.
Two coronal mass ejections (CMEs) impacted Earth on September 18, 2023, producing G3 – Strong geomagnetic storming.
An approximate 35-degree solar filament eruption centered near N22W17 began lifting off at 04:34 UTC on September 16, 2023. The event resulted in a halo coronal mass ejection (CME) that was first observed off the W limb at 09:12 UTC. Analysis of the filament eruption and subsequent halo CME determined a likely arrival early on September 19.
A major solar flare measuring X1.5 erupted from the recently departed Active Region 3386 at 20:46 UTC on August 7, 2023. The event started at 20:30 and ended at 21:18 UTC.
A major, long-duration solar flare measuring X1.6 erupted from Active Region 3386 (beta-delta) at 22:21 UTC on August 5, 2023. The event started at 21:45 and ended at 22:44 UTC.
A coronal mass ejection (CME) produced by filament eruption on August 2, 2023, combined with a smaller CME produced on August 1 and reached our planet at 02:53 UTC on August 5.
An active filament channel in the vicinity of Region 3386 erupted simultaneously with M1.3 solar flare at 08:12 UTC on August 2, 2023, producing an Earth-directed CME.
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.
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.
