X9.0 solar flare! Strongest flare of Solar Cycle 25!

Thursday, 3 October 2024 18:06 UTC

X9.0 solar flare! Strongest flare of Solar Cycle 25!

Sunspot region 3842 is on fire! This region is in a perfect earth-facing position and today produced the strongest solar flare of the current solar cycle! It was an X9.05 solar flare (R3-strong) that peaked at 12:18 UTC. This is in fact the strongest solar flare in 7 years. The last time we had solar flares bigger than this one was back in 2017! Yes that is the previous Solar Cycle!

The solar flare was fairly impulsive but it still did cause an eruption which released solar material out in to interplanetary space. However, when we look at the coronagraph imagery from SOHO/LASCO courtesy of SEEDs we see a complex puzzle. The image is quite complicated with multiple eruptions going on, most notably an eruption to the north-west which likely comes from a filament eruption, an eruption to the north-west which might be far side related and a mostly southward eruption which likely is the X9 flare. However, we do see a clear full halo outline and a lot of you know what that means, there is an earth-directed coronal mass ejection inbound. We did not do any speed calculations yet but the coronal mass ejection does not look very fast purely based on the images we have right now. It is easy to get hyped but we are not expecting similar aurora like we had in May from this eruption but it will still be an event to look forward to.

LASCO coronagraph imagery following the X9 solar flare shows a halo CME along with multiple unrelated eruptions making analyzing this event very hard.
LASCO coronagraph imagery following the X9 solar flare shows a halo CME along with multiple unrelated eruptions making analyzing this event very hard.

Arrival times and Kp forecasts will be provided later once more data comes in but it's looking good for those who love aurora with now two coronal mass ejections heading towards Earth, the first one is expected to arrive at Earth in roughly 24 hours from now (late on 4 October).

Thank you for reading this article! Did you have any trouble with the technical terms used in this article? Our help section is the place to be where you can find in-depth articles, a FAQ and a list with common abbreviations. Still puzzled? Just post on our forum where we will help you the best we can! Never want to miss out on a space weather event or one of our news articles again? Subscribe to our mailing list, follow us on Twitter and Facebook and download the SpaceWeatherLive app for Android and iOS!

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

100%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/10/31X2.0
Last M-flare2024/11/02M1.2
Last geomagnetic storm2024/10/12Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
September 2024141.4 -74.1
November 2024210 +68.6
Last 30 days158.8 +9.2

This day in history*

Solar flares
12003X11.9
22011M6.21
32003M2.62
42013M2.38
52021M1.72
DstG
11991-189G3
21968-179G4
31959-96G2
41972-93G2
51982-73G2
*since 1994

Social networks