Solar activity – The Watchers

M2.4 solar flare erupts from the northeast limb

Teo Blašković — Tue, 08 Jul 2025 11:13:38 +0000

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.

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Impulsive X1.9 solar flare erupts from Region 4114

Teo Blašković — Fri, 20 Jun 2025 07:50:40 +0000

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.

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Impulsive X1.2 solar flare erupts from geoeffective Active Region 4114

Teo Blašković — Tue, 17 Jun 2025 23:09:23 +0000

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.

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Strong M8.4 solar flare erupts from AR 4114, CME produced

Teo Blašković — Sun, 15 Jun 2025 19:17:36 +0000

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.

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Long-duration M8.1 solar flare produces strong Earth-directed CME, impact expected on June 1

Teo Blašković — Sat, 31 May 2025 09:17:49 +0000

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.

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M3.4 solar flare erupts from AR 4100, Earth-directed CMEs possible in coming days

Teo Blašković — Fri, 30 May 2025 07:44:49 +0000

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.

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Major X1.1 solar flare erupts from Region 4098

Teo Blašković — Sun, 25 May 2025 05:58:18 +0000

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.

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Major X2.7 solar flare erupts from Active Region 4087

Teo Blašković — Wed, 14 May 2025 10:12:32 +0000

A major solar flare measuring X2.7 erupted from Active Region 4087 at 08:19 UTC on May 14, 2025. The event began at 08:04 and ended at 08:31 UTC. This is the 8th X-class solar flare of the year and the strongest to date. It currently ranks as the 15th most powerful flare of Solar Cycle 25, exceeding the X2.56 event observed on February 16, 2024. This is also the second X-class flare within the past 24 hours, following an X1.2 flare at 15:38 UTC on May 14 from a region near the Sun’s west limb.

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Major X1.2 solar flare erupts from Sun’s west limb

Teo Blašković — Tue, 13 May 2025 16:31:55 +0000

A major solar flare measuring X1.2 erupted from Active Region 4086 at 15:38 UTC on May 13, 2025. The event started at 15:25 and ended at 15:44 UTC. This is the seventh X-class solar flare of the year and the first since March 28, tying for the third strongest with the X1.2 flare on January 3.

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Multiple filament eruptions and CMEs observed, none Earth-directed

Teo Blašković — Thu, 08 May 2025 09:06:03 +0000

Four solar filament eruptions between May 6 and 7, 2025, produced fast-moving CMEs, all of which are expected to pass north or south of the Earth without impacting us. G1 - Minor storm conditions are likely on May 9 due to a combination of CH HSS and a possible glancing blow from a CME launched on May 5.

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