M6.5 solar flare erupts from AR 3576, G2 – Moderate geomagnetic storm watch
A moderately strong M6.5 solar flare erupted from Active Region 3576 at 03:48 UTC on February 12, 2024. The event started at 03:23 and ended at 03:53 UTC.
Major X3.3 solar flare erupts behind the SW limb, S2 – Moderate solar radiation storm
A powerful solar flare measuring X3.3 erupted behind the SW limb of the Sun (AR 3575) at 13:14 UTC on February 9, 2024. This solar flare is the second most intense in Solar Cycle 25, following an X5.0 flare that occurred on January 31, 2023.
Long-duration M5.1 solar flare erupts from Region 3575
A long-duration M5.1 solar flare erupted from Active Region 3575 at 03:31 UTC on February 7, 2024. The event started at 03:04 and ended at 04:11 UTC. The flare follows M4.2 from the same region at 03:12 UTC on February 6.
Long-duration M4.2 solar flare erupts from Region 3575
A long-duration M4.2 solar flare erupted from Active Region 3575 at 03:12 UTC on February 6, 2024. The event started at 02:37 UTC and ended at 03:37.
S2 – Moderate solar radiation storm following M6.7 solar flare
Following the M6.7 solar flare from Active Region 3559 on January 29, 2024, enhanced proton levels were recorded, with the greater than 10 MeV reaching the S2 – Moderate threshold and greater than 100 MeV peaking at 0.67 pfu.
M6.7 solar flare erupts from Region 3559, producing S2 – Moderate solar radiation storm
A moderately strong solar flare measuring M6.7 erupted from Active Region 3559 (beta-gamma) at 04:38 UTC on January 29, 2024. The event started at 03:54 and ended at 05:15 UTC.
Solar filament eruption produces Earth-directed CME
An approximately 25 degrees in length filament eruption centered near S35W09, began erupting after 09:00 UTC on January 22, 2024, producing an Earth-directed CME. The estimated time of arrival is January 25.
Complex filament eruption produced Earth-directed CME, impact expected late January 22
A coronal mass ejection produced by a filament eruption on January 20, 2024, is expected to reach Earth late January 22, producing G2 – Moderate geomagnetic storming.
Major X5.0 solar flare erupts from Region 3536 — the strongest flare of Solar Cycle 25
A major X5.0 solar flare erupted from Active Region 3536 at 21:55 UTC on December 31, 2023. The event started at 21:36 and ended at 22:08 UTC. This is now the strongest solar flare of the current solar cycle — Solar Cycle 25 — and the strongest flare since X9.3 on September 6, 2017.
Multiple M-class solar flares and CMEs, possible CME impact on December 27
Multiple M-class solar flares and CMEs were recorded on December 24, 2023. Forecasts indicate potential geomagnetic disturbances with a grazing blow expected late on December 27, 2023.