Reports from NOAA and NASA

Sun Emits Powerful X7.1-Class Solar Flare, Second Largest Since 2017, Causing Widespread Radio Blackout

Oct 1, 2024, 10:59 PM

On October 1, 2024, the Sun emitted a significant X7.1-class solar flare, peaking at 6:20 p.m. ET. This event, originating from sunspot region 3842, caused a widespread radio blackout on the day-lit side of the Earth, particularly affecting the Pacific region. The flare, which is the second largest since 2017, was associated with an R3-level radio blackout, impacting HF radio and GPS signals in the Western Hemisphere, Australia, and the Asian Pacific. Early indications suggest a coronal mass ejection (CME) may have been produced, with further data awaited from STEREO/LASCO. The NOAA reported that the X-Ray Flux exceeded the M5 threshold, and a 10cm Radio Burst with a peak flux of 810 sfu was recorded. Both NOAA and NASA have been monitoring the situation closely, with updates expected as more information becomes available.