Moderate M1.7 solar flare erupts at 07:46 UTC on November 8, 2026

A moderate M1.7 solar flare erupted at 07:46 UTC on November 8, 2026. According to event records, this flare began at 07:33 UTC, peaked at 07:46 UTC, and ended at 07:54 UTC, all associated with region 4566.

Today’s flares include one M-class event: an M1.7 flare from region 4566 peaking at 07:46 UTC, and several C-class events including C8.9 at 03:24 UTC, C4.4 at 01:07 UTC, C3.9 at 00:49 UTC, C3.7 at 04:18 UTC, C3.0 at 02:17 UTC, C2.9 at 06:36 UTC, and others, all from region 4566.

In 24 hours to 00:30 UTC on November 8, solar activity increased to moderate levels, with several R1 – Minor radio blackout events observed. The largest reported was an M1.9 flare. No Earth-directed coronal mass ejections were detected.

Solar activity is likely to remain at moderate levels with M-class flares (R1 – Minor to R2 – Moderate) likely and a chance for an X-class flare (R3 – Strong) between November 8 and 10.

Active sunspot regions presently observed on the Earth-facing solar disk include AR 4565 (N13W31 – Alpha), AR 4566 (S06E06 – Beta-Gamma-Delta), AR 4567 (N18W83 – Alpha), AR 4568 (S09E25 – Alpha), AR 4569 (S06W07 – Alpha), and AR 4570 (S13E47 – Alpha).

Over the past 24 hours, the greater than 2 MeV electron flux decreased to moderate levels, while the greater than 10 MeV proton flux remained at background levels. The greater than 2 MeV electron flux is likely to be at normal to moderate levels on November 8–9, with high levels likely by November 10. There is a slight chance for the greater than 10 MeV proton flux to exceed S1 – Minor storm levels over November 8–10.

In the past 24 hours, solar wind parameters reflected the influence of a negative polarity coronal hole high-speed stream. Total magnetic field strength reached 15 nT and the Bz component reached as far south as -11 nT. Solar wind speed increased steadily, peaking around 736 km/s. The solar wind environment is expected to remain enhanced as coronal hole high-speed stream influence continues through November 10.

Over the past day, the geomagnetic field reached G1 – Minor geomagnetic storm levels. The geomagnetic field is expected to reach G1 – Minor geomagnetic storm levels, with a chance for G2 – Moderate storm levels on November 8, likely continuing into November 9. As coronal hole effects wane, unsettled to active conditions are likely on November 10.