Impulsive X1.9 solar flare erupts from Region 4114
An impulsive solar flare measuring X1.9 erupted from Active Region 4114 at 23:50 UTC on June 19, 2025. The event started at 23:37 and ended at 23:54 UTC.
Impulsive X1.2 solar flare erupts from geoeffective Active Region 4114
An impulsive solar flare measuring X1.2 erupted from Active Region 4114 at 21:49 UTC on June 17, 2025. The event started at 21:38 and ended at 21:54 UTC.
Major X1.1 solar flare erupts from Region 4098
A major solar flare measuring X1.1 erupted at 01:52 UTC on May 25, 2025, from Active Region 4098 located in the southwest quadrant. The event began at 01:46 UTC and ended at 01:57 UTC. Multiple associated radio bursts were detected between 01:48 and 01:53 UTC.
Major X1.1 solar flare erupts near the east limb, large CME produced
A major solar flare measuring X1.1 erupted from a region located near the Sun’s east limb at 15:20 UTC on March 28, 2025. The event started at 14:57 and ended at 15:43 UTC.
Impulsive X2.0 solar flare erupts from the Sun’s northwest limb
An impulsive solar flare measuring X2.0 erupted from Active Region 4001 at 19:27 UTC on February 23, 2025. The event started at 19:22 and ended at 19:34 UTC. A coronal mass ejection (CME) was produced but the location of this region does not favor Earth-directed CMEs.
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.