Impulsive M7.4 solar flare erupts from Region 3964
An impulsive solar flare measuring M7.4 erupted from Active Region 3964 at 13:35 UTC on January 17, 2025. The event started at 13:24 and ended at 13:39 UTC.
Major X1.8 solar flare erupts from AR 3947 – third X-class in a day
A major solar flare measuring X1.8 erupted from Active Region (AR) 3947 at 12:48 UTC on January 4, 2025. The event started at 12:35 and ended at 12:56 UTC. This is the third X-class solar flare after X1.2 at 11:39 UTC and X1.1 at 22:41 UTC on January 3 — all produced by AR 3947.
Major X1.1 solar flare erupts from Region 3947, G1 geomagnetic storm in progress
A major solar flare measuring X1.1 erupted from Active Region (AR) 3947 at 22:41 UTC on January 3, 2025. The event started at 22:32 and ended at 22:51 UTC. This is the second X-class solar flare produced on January 3 — both from AR 3947. Meanwhile, CME produced on January 1 impacted Earth early January 4, sparking G1 – Minor geomagnetic storm.
Major X1.2 solar flare erupts from NE limb – first X-class flare of 2025
A major solar flare measuring X1.2 erupted from Active Region (AR) 3947 at 11:39 UTC on January 3, 2025. This is the first X-class solar flare of 2025. The event started at 11:29 and ended at 11:49 UTC.
Solar activity ramps up with three X-class and over 20 M-class solar flares in 24 hours
Solar activity increased to high levels on December 29 and 30, 2024, producing more than 20 M- and 3 X-class solar flares in just over 24 hours. At least one of these events produced an Earth-directed coronal mass ejection (CME) – with impact expected on December 31. As a result, a G3 – Strong Geomagnetic Storm Watch is in effect.
Major X1.1 solar flare erupts from Region 3936, CME impact possible on December 31
A major X1.1 solar flare erupted from Active Region 3936 at 07:18 UTC on December 29, 2024. The event started at 07:08 and ended at 07:34 UTC. Two CMEs were noted in LASCO imagery following multiple solar flares today. Initial analysis indicates at least one has a likely Earth-directed component, with a possible arrival early on December 31.
Exceptionally fast, Extremely Rare CME launched from farside of the Sun
A powerful coronal mass ejection (CME) with an estimated speed of 3 161 km/s erupted on the Sun’s farside around 16:00 UTC on Tuesday, December 17, 2024.
Impulsive X2.2 solar flare erupts from Region 3912, glancing blow possible on December 11
A major solar flare measuring X2.2 erupted from Active Region 3912 at 09:06 UTC on December 8, 2024. The event started at 08:50 and ended at 09:10 UTC.
M9.4 solar flare erupts beyond northeastern limb
A strong solar flare measuring M9.4 erupted beyond the Sun’s northeastern limb at 07:42 UTC on November 25, 2024. The event started at 07:24 and ended at 08:03 UTC.
Strong M9.4 solar flare erupts from Region 3889, CME produced
A strong solar flare measuring M9.4 erupted from Active Region 3889 at 12:06 UTC on November 10, 2024. The event started at 11:51 and ended at 12:14 UTC.
