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X9.3 earth-directed coronal mass ejection
The wait is over. We finally have a complete set of SOHO/LASCO coronagraph images from today's memorable X9.3 solar flare. If you missed today's space weather events be sure to read this news article before you continue reading here.
Major X9.33 solar flare
What a day! The strongest solar flare of solar cycle 24 erupted today at 12:02 UTC and of course it was sunspot region 2673 that took center stage. It was a memorable X9.33 solar flare (R3-strong radio blackout) which was highly eruptive as well. We have to go all the way back to 5 May 2015 to find the last time we had an X-class solar flare and it has been 12 years ago since we had a solar flare which was stronger than today's X9.3 event! Not bad considering we are already in the declining phase of solar cycle 24!
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |