M2.4 solar flare erupts from the northeast limb
After 18 days with no notable flaring, our star unleashed an M2.4 solar flare from an emerging region on the northeast limb. The flare began at 03:42, peaked at 04:17 and ended at 04:37 UTC.
Strong M8.4 solar flare erupts from AR 4114, CME produced
A strong M8.4 solar flare erupted from Active Region 4114 at 18:07 UTC on June 15, 2025. This event began at 17:45 UTC, peaked at 18:07 UTC, and ended at 18:25 UTC.
G4 – Severe geomagnetic storm watch issued for June 2 following strong Earth-directed CME
The U.S. Space Weather Prediction Center (SWPC) issued a G4 – Severe geomagnetic storm watch for June 2, 2025, following the eruption of a powerful, Earth-directed coronal mass ejection (CME) associated with a long-duration M8.1 solar flare from Active Region 4100. The CME is forecast to arrive at Earth late on June 1, with geomagnetic storm conditions expected to intensify through June 2.
Long-duration M8.1 solar flare produces strong Earth-directed CME, impact expected on June 1
A strong, long-duration solar flare registered as M8.1 erupted from Active Region 4100 at 00:05 UTC on May 31, 2025. The flare began at 23:31 UTC on May 30 and ended at 01:32 UTC on May 31. The eruption produced a significant coronal mass ejection (CME). Model forecasts indicate that the CME is Earth-directed and is expected to arrive on June 1.
M3.4 solar flare erupts from AR 4100, Earth-directed CMEs possible in coming days
A moderately strong solar flare measuring M3.4 erupted from Active Region 4100 at 06:13 UTC on May 30, 2025. The event started at 05:40 and ended at 06:19 UTC. A coronal mass ejection (CME) may have been produced during the event, and there is a possibility that part of it is directed toward Earth.
Solar radiation storm reaches S2 levels, strong M5.6 solar flare erupts from AR 4046
A strong M5.6 solar flare erupted from Active Region 4046 at 07:55 UTC on April 1, 2025, producing a 10cm radio burst but showing no signs of an associated coronal mass ejection (CME). Meanwhile, a solar radiation storm triggered by the X1.1 flare on March 28 reached the S2 – Moderate threshold at 02:05 UTC today.
M7.6 solar flare erupts from Region 3981
A moderately strong solar flare measuring M7.6 erupted from Active Region 3981 at 11:04 UTC on February 6, 2025. The event started at 10:47 and ended at 11:16 UTC.
Moderately strong M8.8 solar flare erupts from Active Region 3981
A moderately strong solar flare measuring M8.8 erupted from Active Region 3981 at 03:58 UTC on February 3, 2025. The event started at 03:52 and ended at 04:04 UTC.
Earth-facing Active Region 3977 produces M5.1 solar flare
An impulsive solar flare registered as M5.1 erupted from Active Region 3977 at 14:04 UTC on February 2, 2025. The event started at 13:58 and ended at 14:08 UTC. With the region positioned at the center of the solar disk, the likelihood of Earth-directed activity remains elevated in the coming days. Meanwhile, the solar wind continues to be influenced by a positive polarity coronal hole high-speed stream, potentially leading to geomagnetic disturbances.
Strong M6.7 solar flare erupts from Region 3978, CME produced
A strong solar flare measuring M6.7 erupted from Active Region 3978 at 14:06 UTC on January 31, 2025, producing a coronal mass ejection (CME). The event started at 13:40 and ended at 14:25 UTC. This is the strongest solar flare since M7.4 on January 17.